cformsII <= 15.1.4 - Unauthenticated Reflected Cross-Site Scripting via Form Field Values in Success Message
- ID
- WPSEC-2026-2529
- Plugin
- cformsII (cforms2)
- Affected
- all versions before 15.2
- Remediation
- Update to 15.2 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-11-04
- Attack surface
- cformsII on WPSec AttackSurface
- Fix released
- Published
Description
The cformsII plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via submitted form field values in all versions up to, and including, 15.1.4, due to field values substituted into {field} variables of the success message being output without escaping, combined with missing nonce validation on direct (non-AJAX) form submissions. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute in a victim's browser if the form's success message uses a field variable and they can trick the victim into performing an action such as visiting a page that auto-submits a crafted form.
References
- https://wpsec.com/vuln/WPSEC-2026-2529/
- https://plugins.svn.wordpress.org/cforms2/tags/15.2/
- https://wordpress.org/plugins/cforms2/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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