CVE-2026-82599: SeaCMS Avatar Upload member.php unlink path traversal

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-31 · updated 2026-08-31
Weakness: CWE-22

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.

Affected products

SeaCMS: 13.0, 13.1, 13.2, 13.3, 13.4, 13.5 (+1)

References

https://github.com/T-Chachamaru/seacms-13.6-security-advisories/blob/a084a3e573240d54860153321df271280daec262/c-002b-member-oldpic-file-deletion.md
https://vuldb.com/cve/CVE-2026-82599
https://vuldb.com/submit/892780
https://vuldb.com/vuln/397101
https://vuldb.com/vuln/397101/cti

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