CVE-2025-11857 XX2WP Integration Tools <= 1.9.9 - Authenticated (Contributor+) Stored Cross-Site Scripting
Authenticated attackers can inject arbitrary scripts via a shortcode parameter, leading to stored XSS execution on victim pages.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-11857?
CVE-2025-11857 is a medium-severity cross-site scripting vulnerability in mxp XX2WP Integration Tools, published on 18 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The XX2WP Integration Tools plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'mxp_fb2wp_display_embed' shortcode in all versions up to, and including, 1.9.9. This is due to the plugin not properly sanitizing user input and output of the 'post_id' parameter. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Weakness: CWE-79
Which versions are affected by CVE-2025-11857?
How do I fix CVE-2025-11857?
No fix has been published for CVE-2025-11857 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-2025-11857 being exploited?
There is no known exploitation of CVE-2025-11857 in the wild and no public exploit code.
Sources
Also known as GHSA-3jc8-87g9-6vvg.