CVE-2026-16617 Simple File List <= 6.3.11 - Unauthenticated Stored XSS via File Description
Unauthenticated attackers can inject malicious scripts via file descriptions in the Simple File List plugin, affecting visitors when front-end management is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-16617?
CVE-2026-16617 is a high-severity cross-site scripting vulnerability in Unknown Simple File List, published on 19 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The Simple File List WordPress plugin through 6.3.11 does not properly sanitise and escape a file's description before outputting it on the public file list, allowing unauthenticated users (when front-end file management is enabled) to perform Stored Cross-Site Scripting attacks that execute in the browser of any visitor viewing the list.
Weakness: CWE-79
Which versions are affected by CVE-2026-16617?
How do I fix CVE-2026-16617?
No fix has been published for CVE-2026-16617 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-2026-16617 being exploited?
There is no known exploitation of CVE-2026-16617 in the wild and no public exploit code.
Sources
Also known as GHSA-36w4-4687-hhqj.