CVE-2026-15004 Cross-site scripting in FileBird – WordPress Media Library Folders & File Manager
Authenticated attackers can inject arbitrary scripts via image alt text, leading to code execution when other users view the page.
- 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-2026-15004?
CVE-2026-15004 is a medium-severity cross-site scripting vulnerability in ninjateam FileBird – WordPress Media Library Folders & File Manager, published on 18 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The FileBird – WordPress Media Library Folders & File Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via image alt text in all versions up to, and including, 6.5.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-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-2026-15004?
How do I fix CVE-2026-15004?
No fix has been published for CVE-2026-15004 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-2026-15004 being exploited?
There is no known exploitation of CVE-2026-15004 in the wild and no public exploit code.
Sources
Also known as GHSA-frcx-m56m-h2jh.