CVE-2026-5249 gougucms Record Endpoint record.html cross site scripting
Remote attackers can inject malicious scripts via the record endpoint in gougucms, potentially leading to code execution or account takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-5249?
CVE-2026-5249 is a medium-severity cross-site scripting vulnerability in gougucms, published on 1 Apr 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A vulnerability was found in gougucms 4.08.18. This impacts an unknown function of the file \gougucms-master\app\admin\view\user\record.html of the component Record Endpoint. Performing a manipulation of the argument value.content results in cross site scripting. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-5249?
How do I fix CVE-2026-5249?
No fix has been published for CVE-2026-5249 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-2026-5249 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5249 exists.
Sources
Also known as GHSA-56gw-v5vp-rmjp.