CVE-2026-96567

MW WP Form <= 5.1.7 - Unauthenticated Stored Cross-Site Scripting via 'post_id' Parameter (via stored form-submitted post meta)

Published Oct 2, 2026 CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Description
The MW WP Form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'post_id' parameter in all versions up to, and including, 5.1.7 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. The CSRF gate protecting form submission (MW_WP_Form_Csrf) is bypassable by any unauthenticated visitor who first loads the public form page to obtain a valid double-submit cookie, leaving no effective barrier to storing malicious payloads.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Web-soudan
Web-soudan mw Wp Form
Wordpress-extensions
Wordpress-extensions mw Wp Form
Vendors & Products Web-soudan
Web-soudan mw Wp Form
Wordpress-extensions
Wordpress-extensions mw Wp Form
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Description The MW WP Form plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'post_id' parameter in all versions up to, and including, 5.1.7 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. The CSRF gate protecting form submission (MW_WP_Form_Csrf) is bypassable by any unauthenticated visitor who first loads the public form page to obtain a valid double-submit cookie, leaving no effective barrier to storing malicious payloads.
Title MW WP Form <= 5.1.7 - Unauthenticated Stored Cross-Site Scripting via 'post_id' Parameter (via stored form-submitted post meta)
Weaknesses CWE-79
References
Metrics cvssV3_1

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Oct 3, 2026, 3:42 PM
Reserved
Sep 23, 2026, 1:19 PM
Status
Deferred
Published
Oct 2, 2026, 8:17 AM
Modified
Oct 3, 2026, 4:16 PM