CVE-2026-8211 codelibs Fess JSP File AdminDesignAction.java update code injection
Remote attackers with permissions can inject code via the AdminDesignAction update function in codelibs Fess, leading to arbitrary code execution.
- 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-2026-8211?
CVE-2026-8211 is a medium-severity code injection vulnerability in codelibs Fess, published on 9 May 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A vulnerability was detected in codelibs Fess up to 15.5.1. Affected by this issue is the function update of the file org/codelibs/fess/app/web/admin/design/AdminDesignAction.java of the component JSP File Handler. The manipulation of the argument content results in code injection. The attack may be performed from remote. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-8211?
How do I fix CVE-2026-8211?
No fix has been published for CVE-2026-8211 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-8211 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8211 exists.
Sources
Also known as GHSA-cmq8-32v4-qp9h.