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4 vulnerabilities found for Contact Form by Supsystic by supsysticcom
CVE-2026-83625 (GCVE-0-2026-83625)
Vulnerability from cvelistv5
Published
2026-09-05 07:38
Modified
2026-09-07 11:17
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
The Contact Form by Supsystic plugin for WordPress is vulnerable to Stored Cross-Site Scripting via IP Address Header in all versions up to, and including, 1.10.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. An unauthenticated attacker can first call the 'updateNonce' action — which is accessible without authentication due to its absence from the plugin's permission list — to obtain a valid nonce, then submit a contact form with a malicious payload in a spoofed IP header such as X-Forwarded-For.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| supsysticcom | Contact Form by Supsystic |
Version: 0 ≤ 1.10.2 |
{
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"timestamp": "2026-09-07T11:04:40.455761Z",
"version": "2.0.3"
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"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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"product": "Contact Form by Supsystic",
"vendor": "supsysticcom",
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"type": "finder",
"value": "andrea bocchetti"
}
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}
],
"metrics": [
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"baseSeverity": "HIGH",
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"version": "3.1"
}
}
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}
]
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],
"providerMetadata": {
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"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/aa65bced-a449-4ba5-accf-40a824ee464d?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-by-supsystic/tags/1.10.2/modules/forms/js/admin.forms.contacts.list.js#L204"
},
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-by-supsystic/tags/1.10.2/classes/utils.php#L77"
},
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-by-supsystic/tags/1.10.2/modules/forms/models/forms.php#L103"
},
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-by-supsystic/tags/1.10.2/modules/forms/controller.php#L411"
},
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-by-supsystic/tags/1.10.2/modules/forms/controller.php#L390"
},
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-by-supsystic/tags/1.8.1/modules/forms/js/admin.forms.contacts.list.js#L204"
},
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-by-supsystic/tags/1.8.1/classes/utils.php#L77"
},
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-by-supsystic/tags/1.8.1/modules/forms/models/forms.php#L103"
},
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-by-supsystic/tags/1.8.1/modules/forms/controller.php#L411"
},
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-by-supsystic/tags/1.8.1/modules/forms/controller.php#L390"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3679442%40contact-form-by-supsystic\u0026new=3679442%40contact-form-by-supsystic"
}
],
"timeline": [
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"time": "2026-08-31T21:04:59.000Z",
"value": "Vendor Notified"
},
{
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"time": "2026-09-04T19:31:56.000Z",
"value": "Disclosed"
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],
"title": "Contact Form by Supsystic \u003c= 1.10.2 - Unauthenticated Stored Cross-Site Scripting via IP Address Header"
}
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CVE-2026-4257 (GCVE-0-2026-4257)
Vulnerability from cvelistv5
Published
2026-03-30 21:26
Modified
2026-04-08 16:48
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Summary
The Contact Form by Supsystic plugin for WordPress is vulnerable to Server-Side Template Injection (SSTI) leading to Remote Code Execution (RCE) in all versions up to, and including, 1.7.36. This is due to the plugin using the Twig `Twig_Loader_String` template engine without sandboxing, combined with the `cfsPreFill` prefill functionality that allows unauthenticated users to inject arbitrary Twig expressions into form field values via GET parameters. This makes it possible for unauthenticated attackers to execute arbitrary PHP functions and OS commands on the server by leveraging Twig's `registerUndefinedFilterCallback()` method to register arbitrary PHP callbacks.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| supsysticcom | Contact Form by Supsystic |
Version: 0 ≤ 1.7.36 |
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],
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"timestamp": "2026-03-31T16:13:43.800701Z",
"version": "2.0.3"
},
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"credits": [
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"type": "finder",
"value": "Azril Fathoni"
}
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"descriptions": [
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"value": "The Contact Form by Supsystic plugin for WordPress is vulnerable to Server-Side Template Injection (SSTI) leading to Remote Code Execution (RCE) in all versions up to, and including, 1.7.36. This is due to the plugin using the Twig `Twig_Loader_String` template engine without sandboxing, combined with the `cfsPreFill` prefill functionality that allows unauthenticated users to inject arbitrary Twig expressions into form field values via GET parameters. This makes it possible for unauthenticated attackers to execute arbitrary PHP functions and OS commands on the server by leveraging Twig\u0027s `registerUndefinedFilterCallback()` method to register arbitrary PHP callbacks."
}
],
"metrics": [
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],
"providerMetadata": {
"dateUpdated": "2026-04-08T16:48:39.880Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/415c9658-bfb2-453b-a697-c63c08b0ca61?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-by-supsystic/tags/1.7.36/modules/forms/views/forms.php#L323"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3491826/contact-form-by-supsystic"
}
],
"timeline": [
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"lang": "en",
"time": "2026-03-16T09:47:14.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-03-30T09:13:47.000Z",
"value": "Disclosed"
}
],
"title": "Contact Form by Supsystic \u003c= 1.7.36 - Unauthenticated Server-Side Template Injection via Prefill Functionality"
}
},
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"cveId": "CVE-2026-4257",
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"state": "PUBLISHED"
},
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CVE-2024-13452 (GCVE-0-2024-13452)
Vulnerability from cvelistv5
Published
2025-04-16 02:12
Modified
2026-04-08 17:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
The Contact Form by Supsystic plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.7.29. This is due to missing or incorrect nonce validation on a saveAsCopy function. This makes it possible for unauthenticated attackers to update settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| supsysticcom | Contact Form by Supsystic |
Version: 0 ≤ 1.7.29 |
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"timestamp": "2025-04-16T13:15:08.550286Z",
"version": "2.0.3"
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"type": "finder",
"value": "Tim Coen"
}
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}
],
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"providerMetadata": {
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"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
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"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b2dbf510-d99f-4918-8462-66696b68003c?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/contact-form-by-supsystic/tags/1.7.29/modules/forms/models/forms.php#L933"
},
{
"url": "https://plugins.trac.wordpress.org/changeset/3267149/"
}
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CVE-2023-2528 (GCVE-0-2023-2528)
Vulnerability from cvelistv5
Published
2023-05-16 23:35
Modified
2026-04-08 16:38
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Summary
The Contact Form by Supsystic plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.7.24. This is due to missing or incorrect nonce validation on the AJAX action handler. This makes it possible for unauthenticated attackers to execute AJAX actions via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| supsysticcom | Contact Form by Supsystic |
Version: 0 ≤ 1.7.24 |
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},
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"url": "https://plugins.trac.wordpress.org/browser/contact-form-by-supsystic/trunk/classes/frame.php?rev=2777737#L297"
},
{
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],
"url": "https://plugins.trac.wordpress.org/browser/contact-form-by-supsystic/trunk/classes/frame.php?rev=2912584#L230"
}
],
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"timestamp": "2025-01-13T16:22:29.877246Z",
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"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
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"vendor": "supsysticcom",
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"value": "Marco Wotschka"
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