CVE-2026-1357 (GCVE-0-2026-1357)
Vulnerability from cvelistv5
Published
2026-02-11 05:30
Modified
2026-04-08 17:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Summary
The Migration, Backup, Staging – WPvivid Backup & Migration plugin for WordPress is vulnerable to Unauthenticated Arbitrary File Upload in versions up to and including 0.9.123. This is due to improper error handling in the RSA decryption process combined with a lack of path sanitization when writing uploaded files. When the plugin fails to decrypt a session key using openssl_private_decrypt(), it does not terminate execution and instead passes the boolean false value to the phpseclib library's AES cipher initialization. The library treats this false value as a string of null bytes, allowing an attacker to encrypt a malicious payload using a predictable null-byte key. Additionally, the plugin accepts filenames from the decrypted payload without sanitization, enabling directory traversal to escape the protected backup directory. This makes it possible for unauthenticated attackers to upload arbitrary PHP files to publicly accessible directories and achieve Remote Code Execution via the wpvivid_action=send_to_site parameter.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| wpvividplugins | WPvivid — Backup, Migration & Staging |
Version: 0 ≤ 0.9.123 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-1357",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-11T15:45:37.402512Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-02-11T15:46:38.325Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "WPvivid \u2014 Backup, Migration \u0026 Staging",
"vendor": "wpvividplugins",
"versions": [
{
"lessThanOrEqual": "0.9.123",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Lucas Montes"
}
],
"descriptions": [
{
"lang": "en",
"value": "The Migration, Backup, Staging \u2013 WPvivid Backup \u0026 Migration plugin for WordPress is vulnerable to Unauthenticated Arbitrary File Upload in versions up to and including 0.9.123. This is due to improper error handling in the RSA decryption process combined with a lack of path sanitization when writing uploaded files. When the plugin fails to decrypt a session key using openssl_private_decrypt(), it does not terminate execution and instead passes the boolean false value to the phpseclib library\u0027s AES cipher initialization. The library treats this false value as a string of null bytes, allowing an attacker to encrypt a malicious payload using a predictable null-byte key. Additionally, the plugin accepts filenames from the decrypted payload without sanitization, enabling directory traversal to escape the protected backup directory. This makes it possible for unauthenticated attackers to upload arbitrary PHP files to publicly accessible directories and achieve Remote Code Execution via the wpvivid_action=send_to_site parameter."
}
],
"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-434",
"description": "CWE-434 Unrestricted Upload of File with Dangerous Type",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-08T17:29:56.152Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e5af0317-ef46-4744-9752-74ce228b5f37?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wpvivid-backuprestore/trunk/includes/class-wpvivid-crypt.php#L58"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wpvivid-backuprestore/tags/0.9.122/includes/class-wpvivid-crypt.php#L58"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wpvivid-backuprestore/tags/0.9.123/includes/class-wpvivid-crypt.php#L58"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wpvivid-backuprestore/trunk/includes/customclass/class-wpvivid-send-to-site.php#L629"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wpvivid-backuprestore/tags/0.9.122/includes/customclass/class-wpvivid-send-to-site.php#L629"
},
{
"url": "https://plugins.trac.wordpress.org/browser/wpvivid-backuprestore/tags/0.9.123/includes/customclass/class-wpvivid-send-to-site.php#L629"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3448386/wpvivid-backuprestore#file1"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-02-10T17:13:35.000Z",
"value": "Disclosed"
}
],
"title": "Migration, Backup, Staging \u003c= 0.9.123 - Unauthenticated Arbitrary File Upload"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-1357",
"datePublished": "2026-02-11T05:30:11.054Z",
"dateReserved": "2026-01-22T20:12:20.756Z",
"dateUpdated": "2026-04-08T17:29:56.152Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-1357\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-02-11T15:45:37.402512Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-02-11T15:46:31.502Z\"}}], \"cna\": {\"title\": \"Migration, Backup, Staging \u003c= 0.9.123 - Unauthenticated Arbitrary File Upload\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Lucas Montes\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"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\"}}], \"affected\": [{\"vendor\": \"wpvividplugins\", \"product\": \"Migration, Backup, Staging \\u2013 WPvivid Backup \u0026 Migration\", \"versions\": [{\"status\": \"affected\", \"version\": \"*\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"0.9.123\"}], \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-02-10T17:13:35.000Z\", \"value\": \"Disclosed\"}], \"references\": [{\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/e5af0317-ef46-4744-9752-74ce228b5f37?source=cve\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/wpvivid-backuprestore/trunk/includes/class-wpvivid-crypt.php#L58\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/wpvivid-backuprestore/tags/0.9.122/includes/class-wpvivid-crypt.php#L58\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/wpvivid-backuprestore/tags/0.9.123/includes/class-wpvivid-crypt.php#L58\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/wpvivid-backuprestore/trunk/includes/customclass/class-wpvivid-send-to-site.php#L629\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/wpvivid-backuprestore/tags/0.9.122/includes/customclass/class-wpvivid-send-to-site.php#L629\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/wpvivid-backuprestore/tags/0.9.123/includes/customclass/class-wpvivid-send-to-site.php#L629\"}, {\"url\": \"https://plugins.trac.wordpress.org/changeset/3448386/wpvivid-backuprestore#file1\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The Migration, Backup, Staging \\u2013 WPvivid Backup \u0026 Migration plugin for WordPress is vulnerable to Unauthenticated Arbitrary File Upload in versions up to and including 0.9.123. This is due to improper error handling in the RSA decryption process combined with a lack of path sanitization when writing uploaded files. When the plugin fails to decrypt a session key using openssl_private_decrypt(), it does not terminate execution and instead passes the boolean false value to the phpseclib library\u0027s AES cipher initialization. The library treats this false value as a string of null bytes, allowing an attacker to encrypt a malicious payload using a predictable null-byte key. Additionally, the plugin accepts filenames from the decrypted payload without sanitization, enabling directory traversal to escape the protected backup directory. This makes it possible for unauthenticated attackers to upload arbitrary PHP files to publicly accessible directories and achieve Remote Code Execution via the wpvivid_action=send_to_site parameter.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-434\", \"description\": \"CWE-434 Unrestricted Upload of File with Dangerous Type\"}]}], \"providerMetadata\": {\"orgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"shortName\": \"Wordfence\", \"dateUpdated\": \"2026-02-11T05:30:11.054Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-1357\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-02-11T15:46:38.325Z\", \"dateReserved\": \"2026-01-22T20:12:20.756Z\", \"assignerOrgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"datePublished\": \"2026-02-11T05:30:11.054Z\", \"assignerShortName\": \"Wordfence\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…