CVE-2025-7431 Knowledge Base <= 2.3.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via Plugin Slug
Administrators can inject scripts via plugin slug in WordPress Knowledge Base, affecting multi-site or unfiltered_html disabled setups.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-7431?
CVE-2025-7431 is a medium-severity cross-site scripting vulnerability in ajay Knowledge Base, published on 18 Jul 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The Knowledge Base plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin slug setting in all versions up to, and including, 2.3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Weakness: CWE-79
Which versions are affected by CVE-2025-7431?
How do I fix CVE-2025-7431?
No fix has been published for CVE-2025-7431 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-2025-7431 being exploited?
There is no known exploitation of CVE-2025-7431 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-qgfh-p4wr-7fq4.