CVE-2026-82599 SeaCMS Avatar Upload member.php unlink path traversal
Remote attackers with permissions can exploit a path traversal in SeaCMS avatar upload to delete arbitrary files via the unlink function.
- 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-2026-82599?
CVE-2026-82599 is a medium-severity path traversal vulnerability in SeaCMS, published on 31 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was identified in SeaCMS up to 13.6. Affected by this vulnerability is the function unlink of the file /member.php?action=chgpwdsubmit of the component Avatar Upload. Such manipulation of the argument oldpic leads to path traversal. It is possible to launch the attack remotely. The exploit is publicly available and might be used.
Weakness: CWE-22
Which versions are affected by CVE-2026-82599?
How do I fix CVE-2026-82599?
No fix has been published for CVE-2026-82599 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-82599 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82599 exists.
Sources
Also known as GHSA-6566-g7xh-w7qg.