Vulnerability · Published Jul 18, 2025 · Assigned by Wordfence
CVE-2025-7431Knowledge Base <= 2.3.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via Plugin Slug
Medium 4.4
In plain English
A medium-severity cross-site scripting in Knowledge Base from ajay. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ajay | Knowledge Base | 0 – through 2.3.1 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N