CVE-2026-5248 gougucms User Registration Login.php reg_submit dynamically-determined object attributes
Remote attackers can manipulate object attributes during user registration to potentially escalate privileges or modify data in gougucms.
- 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-2026-5248?
CVE-2026-5248 is a medium-severity vulnerability in gougucms, published on 1 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability has been found in gougucms 4.08.18. This affects the function reg_submit of the file gougucms-master\app\home\controller\Login.php of the component User Registration Handler. Such manipulation of the argument level leads to dynamically-determined object attributes. The attack may be performed from remote. The exploit has been disclosed to the 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-2026-5248?
How do I fix CVE-2026-5248?
No fix has been published for CVE-2026-5248 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-5248 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5248 exists.
Sources
Also known as GHSA-4q9h-crq4-9xjq.