Refine your search
4 vulnerabilities found for Spam protection, Honeypot, Anti-Spam by CleanTalk by cleantalk
CVE-2026-77830 (GCVE-0-2026-77830)
Vulnerability from cvelistv5
Published
2026-09-05 06:37
Modified
2026-09-08 14:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
The Spam protection, Honeypot, Anti-Spam by CleanTalk plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content aria-label Placeholder in all versions up to, and including, 6.86 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with custom-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload is deliverable via unauthenticated comment submission and executes exclusively for non-logged-in visitors; if comment moderation is enabled, an approving moderator must first publish the comment before the script reaches other users.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| cleantalk | Spam protection, Honeypot, Anti-Spam by CleanTalk |
Version: 0 ≤ 6.86 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-77830",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-08T14:46:58.387821Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-08T14:47:07.519Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Spam protection, Honeypot, Anti-Spam by CleanTalk",
"vendor": "cleantalk",
"versions": [
{
"lessThanOrEqual": "6.86",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "theviper17y"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Spam protection, Honeypot, Anti-Spam by CleanTalk plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content aria-label Placeholder in all versions up to, and including, 6.86 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with custom-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload is deliverable via unauthenticated comment submission and executes exclusively for non-logged-in visitors; if comment moderation is enabled, an approving moderator must first publish the comment before the script reaches other users."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.2,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-05T06:37:55.593Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/10e7000b-597a-4165-8604-cb6b29714abb?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/tags/6.85/lib/Cleantalk/Common/ContactsEncoder/ContactsEncoder.php#L914"
},
{
"url": "https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/tags/6.85/lib/Cleantalk/Common/ContactsEncoder/ContactsEncoder.php#L933"
},
{
"url": "https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/tags/6.85/lib/Cleantalk/ApbctWP/ContactsEncoder/ContactsEncoder.php#L114"
},
{
"url": "https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/tags/6.85/cleantalk.php#L234"
},
{
"url": "https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/tags/6.84/lib/Cleantalk/Common/ContactsEncoder/ContactsEncoder.php#L914"
},
{
"url": "https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/tags/6.84/lib/Cleantalk/Common/ContactsEncoder/ContactsEncoder.php#L933"
},
{
"url": "https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/tags/6.84/lib/Cleantalk/ApbctWP/ContactsEncoder/ContactsEncoder.php#L114"
},
{
"url": "https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/tags/6.84/cleantalk.php#L234"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026new=3677388%40cleantalk-spam-protect%2Ftags%2F6.87\u0026old=3654120%40cleantalk-spam-protect%2Ftags%2F6.86"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3677388/cleantalk-spam-protect/trunk/lib/Cleantalk/Common/ContactsEncoder/ContactsEncoder.php"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?old_path=%2Fcleantalk-spam-protect/tags/6.86\u0026new_path=%2Fcleantalk-spam-protect/tags/6.87"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-08-21T15:09:31.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-09-04T18:03:03.000Z",
"value": "Disclosed"
}
],
"title": "Spam protection, Honeypot, Anti-Spam by CleanTalk \u003c= 6.86 - Unauthenticated Stored Cross-Site Scripting via Comment Content aria-label Placeholder"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-77830",
"datePublished": "2026-09-05T06:37:55.593Z",
"dateReserved": "2026-08-21T14:54:08.589Z",
"dateUpdated": "2026-09-08T14:47:07.519Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-1490 (GCVE-0-2026-1490)
Vulnerability from cvelistv5
Published
2026-02-15 02:22
Modified
2026-04-08 17:23
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-350 - Reliance on Reverse DNS Resolution for a Security-Critical Action
Summary
The Spam protection, Anti-Spam, FireWall by CleanTalk plugin for WordPress is vulnerable to unauthorized Arbitrary Plugin Installation due to an authorization bypass via reverse DNS (PTR record) spoofing on the 'checkWithoutToken' function in all versions up to, and including, 6.71. This makes it possible for unauthenticated attackers to install and activate arbitrary plugins which can be leveraged to achieve remote code execution if another vulnerable plugin is installed and activated. Note: This is only exploitable on sites with an invalid API key.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| cleantalk | Spam protection, Honeypot, Anti-Spam by CleanTalk |
Version: 0 ≤ 6.71 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-1490",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-17T21:21:41.509756Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-02-17T21:21:47.731Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Spam protection, Honeypot, Anti-Spam by CleanTalk",
"vendor": "cleantalk",
"versions": [
{
"lessThanOrEqual": "6.71",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Nguyen Ngoc Duc"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Spam protection, Anti-Spam, FireWall by CleanTalk plugin for WordPress is vulnerable to unauthorized Arbitrary Plugin Installation due to an authorization bypass via reverse DNS (PTR record) spoofing on the \u0027checkWithoutToken\u0027 function in all versions up to, and including, 6.71. This makes it possible for unauthenticated attackers to install and activate arbitrary plugins which can be leveraged to achieve remote code execution if another vulnerable plugin is installed and activated. Note: This is only exploitable on sites with an invalid API key."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-350",
"description": "CWE-350 Reliance on Reverse DNS Resolution for a Security-Critical Action",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-08T17:23:28.127Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/cb603be6-4a12-49e1-b8cc-b2062eb97f16?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/trunk/lib/Cleantalk/ApbctWP/RemoteCalls.php#L69"
},
{
"url": "https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/trunk/lib/Cleantalk/Common/Helper.php#L64"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3454488/cleantalk-spam-protect#file473"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-01-27T14:39:01.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-02-14T14:21:19.000Z",
"value": "Disclosed"
}
],
"title": "Spam protection, Honeypot, Anti-Spam by CleanTalk \u003c= 6.71 - Authorization Bypass via Reverse DNS (PTR record) Spoofing to Unauthenticated Arbitrary Plugin Installation"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-1490",
"datePublished": "2026-02-15T02:22:56.673Z",
"dateReserved": "2026-01-27T14:18:46.456Z",
"dateUpdated": "2026-04-08T17:23:28.127Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2024-10542 (GCVE-0-2024-10542)
Vulnerability from cvelistv5
Published
2024-11-26 05:33
Modified
2026-04-08 17:26
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-862 - Missing Authorization
Summary
The Spam protection, Anti-Spam, FireWall by CleanTalk plugin for WordPress is vulnerable to unauthorized Arbitrary Plugin Installation due to an authorization bypass via reverse DNS spoofing on the checkWithoutToken function in all versions up to, and including, 6.43.2. This makes it possible for unauthenticated attackers to install and activate arbitrary plugins which can be leveraged to achieve remote code execution if another vulnerable plugin is installed and activated.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| cleantalk | Spam protection, Honeypot, Anti-Spam by CleanTalk |
Version: 0 ≤ 6.43.2 |
{
"containers": {
"adp": [
{
"affected": [
{
"cpes": [
"cpe:2.3:a:cleantalk:antispam:*:*:*:*:*:wordpress:*:*"
],
"defaultStatus": "unknown",
"product": "antispam",
"vendor": "cleantalk",
"versions": [
{
"lessThanOrEqual": "6.43.2",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-10542",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-11-26T15:44:32.194618Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-11-26T15:45:22.565Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Spam protection, Honeypot, Anti-Spam by CleanTalk",
"vendor": "cleantalk",
"versions": [
{
"lessThanOrEqual": "6.43.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Michael Mazzolini"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Spam protection, Anti-Spam, FireWall by CleanTalk plugin for WordPress is vulnerable to unauthorized Arbitrary Plugin Installation due to an authorization bypass via reverse DNS spoofing on the checkWithoutToken function in all versions up to, and including, 6.43.2. This makes it possible for unauthenticated attackers to install and activate arbitrary plugins which can be leveraged to achieve remote code execution if another vulnerable plugin is installed and activated."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "CWE-862 Missing Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-08T17:26:40.448Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/d7eb5fad-bb62-4f0b-ad52-b16c3e442b62?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/tags/6.43.2/lib/Cleantalk/ApbctWP/RemoteCalls.php#L41"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3179819/cleantalk-spam-protect#file631"
}
],
"timeline": [
{
"lang": "en",
"time": "2024-10-30T00:00:00.000Z",
"value": "Discovered"
},
{
"lang": "en",
"time": "2024-11-25T17:06:04.000Z",
"value": "Disclosed"
}
],
"title": "Spam protection, Anti-Spam, FireWall by CleanTalk \u003c= 6.43.2 - Authorization Bypass via Reverse DNS Spoofing to Unauthenticated Arbitrary Plugin Installation"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2024-10542",
"datePublished": "2024-11-26T05:33:01.407Z",
"dateReserved": "2024-10-30T12:40:50.344Z",
"dateUpdated": "2026-04-08T17:26:40.448Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2024-10781 (GCVE-0-2024-10781)
Vulnerability from cvelistv5
Published
2024-11-26 05:33
Modified
2026-04-08 17:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-703 - Improper Check or Handling of Exceptional Conditions
Summary
The Spam protection, Anti-Spam, FireWall by CleanTalk plugin for WordPress is vulnerable to unauthorized Arbitrary Plugin Installation due to an missing empty value check on the 'api_key' value in the 'perform' function in all versions up to, and including, 6.44. This makes it possible for unauthenticated attackers to install and activate arbitrary plugins which can be leveraged to achieve remote code execution if another vulnerable plugin is installed and activated.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| cleantalk | Spam protection, Honeypot, Anti-Spam by CleanTalk |
Version: 0 ≤ 6.44 |
{
"containers": {
"adp": [
{
"affected": [
{
"cpes": [
"cpe:2.3:a:cleantalk:antispam:*:*:*:*:*:wordpress:*:*"
],
"defaultStatus": "unknown",
"product": "antispam",
"vendor": "cleantalk",
"versions": [
{
"lessThanOrEqual": "6.44",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-10781",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-11-26T15:52:09.317943Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-11-26T15:52:48.847Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Spam protection, Honeypot, Anti-Spam by CleanTalk",
"vendor": "cleantalk",
"versions": [
{
"lessThanOrEqual": "6.44",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Istv\u00e1n M\u00e1rton"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Spam protection, Anti-Spam, FireWall by CleanTalk plugin for WordPress is vulnerable to unauthorized Arbitrary Plugin Installation due to an missing empty value check on the \u0027api_key\u0027 value in the \u0027perform\u0027 function in all versions up to, and including, 6.44. This makes it possible for unauthenticated attackers to install and activate arbitrary plugins which can be leveraged to achieve remote code execution if another vulnerable plugin is installed and activated."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 8.1,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-703",
"description": "CWE-703 Improper Check or Handling of Exceptional Conditions",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-08T17:02:11.871Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/79ae062c-b084-4045-9407-2d94919993af?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/tags/6.44/lib/Cleantalk/ApbctWP/RemoteCalls.php#L95"
},
{
"url": "https://plugins.trac.wordpress.org/browser/cleantalk-spam-protect/tags/6.44/lib/Cleantalk/ApbctWP/RemoteCalls.php#L96"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3188546/cleantalk-spam-protect#file653"
}
],
"timeline": [
{
"lang": "en",
"time": "2024-11-04T00:00:00.000Z",
"value": "Discovered"
},
{
"lang": "en",
"time": "2024-11-04T00:00:00.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2024-11-25T00:00:00.000Z",
"value": "Disclosed"
}
],
"title": "Spam protection, Anti-Spam, FireWall by CleanTalk \u003c= 6.44 - Authorization Bypass due to Missing Empty Value Check to Unauthenticated Arbitrary Plugin Installation"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2024-10781",
"datePublished": "2024-11-26T05:33:00.910Z",
"dateReserved": "2024-11-04T13:25:26.646Z",
"dateUpdated": "2026-04-08T17:02:11.871Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}