CVE-2026-6633 Yifang CMS Extended Management L_rbac_admin.php store cross site scripting
Remote attackers can inject malicious scripts via the Account argument in the Extended Management Module, 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-2026-6633?
CVE-2026-6633 is a medium-severity cross-site scripting vulnerability in Yifang CMS, published on 20 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 security flaw has been discovered in Yifang CMS up to 2.0.5. The impacted element is the function store of the file plugins/yifang_backend_account/logic/admin/L_rbac_admin.php of the component Extended Management Module. The manipulation of the argument Account results in cross site scripting. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-6633?
How do I fix CVE-2026-6633?
No fix has been published for CVE-2026-6633 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-2026-6633 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6633 exists.
Sources
Also known as GHSA-7gjf-f5f3-qqxw.