CVE-2026-115301

Contact Form by Supsystic < 1.11.1 - Admin+ SSTI via Form Text Block

Published Oct 29, 2026 CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Description
The Contact Form by Supsystic WordPress plugin before 1.11.1 does not sandbox the template engine used to render its forms and allows stored form-editor content to reach that engine as executable template code, enabling an administrator to perform server-side template injection and execute arbitrary code on the server. The injected template is compiled and executed whenever any visitor loads a page containing the form, so the stored payload also lets an unauthenticated visitor read server-side secrets such as authentication salts and database credentials.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions contact Form By Supsystic
Vendors & Products Wordpress-extensions
Wordpress-extensions contact Form By Supsystic
Type Values Removed Values Added
Weaknesses CWE-20
CWE-74
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-94
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Weaknesses CWE-20
CWE-74
Type Values Removed Values Added
Description The Contact Form by Supsystic WordPress plugin before 1.11.1 does not sandbox the template engine used to render its forms and allows stored form-editor content to reach that engine as executable template code, enabling an administrator to perform server-side template injection and execute arbitrary code on the server. The injected template is compiled and executed whenever any visitor loads a page containing the form, so the stored payload also lets an unauthenticated visitor read server-side secrets such as authentication salts and database credentials.
Title Contact Form by Supsystic < 1.11.1 - Admin+ SSTI via Form Text Block
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Oct 29, 2026, 10:56 AM
Reserved
Oct 22, 2026, 9:43 AM
Status
Deferred
Published
Oct 29, 2026, 6:17 AM
Modified
Oct 29, 2026, 3:18 PM