CVE-2026-64946 CSRF Bypass Leading to Stored Cross-Site Scripting via Unrestricted SVG Upload in File Manager
Attackers can achieve stored XSS and administrator account takeover via CSRF and unrestricted SVG upload in the File Manager module.
- 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-2026-64946?
CVE-2026-64946 is a high-severity cross-site scripting vulnerability in Pandora FMS, published on 1 Oct 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
A chained CSRF and unrestricted SVG file upload vulnerability in the File Manager module allows stored Cross-Site Scripting, enabling session cookie exfiltration and administrator account takeover. This issue affects Pandora FMS: from 777 onwards.
Which versions are affected by CVE-2026-64946?
How do I fix CVE-2026-64946?
No fix has been published for CVE-2026-64946 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-2026-64946 being exploited?
There is no known exploitation of CVE-2026-64946 in the wild and no public exploit code.
Sources
Also known as GHSA-8c26-h44h-c9rf.