CVE-2026-115301 Details
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.
A server-side template injection vulnerability allowing arbitrary code execution has been identified in the Contact Form by Supsystic WordPress plugin, affecting versions prior to 1.11.1. The vulnerability arises because the plugin does not properly sandbox the template engine used to render forms. This oversight allows stored form-editor content to be executed as template code. As a result, an administrator can inject templates that are compiled and executed when any visitor loads a page with the form. This exploitation also enables an unauthenticated visitor to access server-side secrets, such as authentication salts and database credentials.
Users are advised to update the Contact Form by Supsystic WordPress plugin to version 1.11.1 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 29, 2026CISA-ADP
Assessed Oct 29, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://wpscan.com/vulnerability/15274345-5ad4-456f-9b5e-40d575ecb272/ | [email protected] | AdvisoryExploitRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| Supsystic Contact Form by Supsystic | < 1.11.1 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 29, 2026 | CVE Modified | CISA-ADP |
| Oct 29, 2026 | New CVE Received | [email protected] |