CVE-2026-96567 Cross-site scripting in MW WP Form
Unauthenticated attackers can inject arbitrary scripts via the post_id parameter in MW WP Form, leading to stored XSS and potential account takeover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-96567?
CVE-2026-96567 is a high-severity cross-site scripting vulnerability in websoudan MW WP Form, published on 2 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-96567?
How do I fix CVE-2026-96567?
No fix has been published for CVE-2026-96567 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-96567 being exploited?
There is no known exploitation of CVE-2026-96567 in the wild and no public exploit code.
Sources
Also known as GHSA-qp55-c5q5-378p.