CVE-2026-86239 liufee FeehiCMS UEditor Widget UeditorAction.php init unrestricted upload
Attackers can upload malicious files via the UEditor widget in FeehiCMS, potentially leading to remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86239?
CVE-2026-86239 is a medium-severity vulnerability in liufee FeehiCMS, published on 7 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was identified in liufee FeehiCMS up to 2.1.1. The impacted element is the function UeditorAction::init of the file backend/widgets/ueditor/UeditorAction.php of the component UEditor Widget. The manipulation leads to unrestricted upload. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
Which versions are affected by CVE-2026-86239?
How do I fix CVE-2026-86239?
No fix has been published for CVE-2026-86239 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-86239 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-86239 exists.
Sources
Also known as GHSA-gv58-r7wh-gmxq.