Auth bypass in Seacms
CVE-2026-82602
A security vulnerability has been detected in SeaCMS up to 13.6. This vulnerability affects unknown code of the file /ass.php. The manipulation leads to authorization bypass. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (42.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Seacms — versions 13.0, 13.1, 13.2
Weakness classification (CWE)
References
- vuldb.com/vuln/397104 (vdb-entry)
- vuldb.com/vuln/397104/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-82602 (third-party-advisory)
- vuldb.com/submit/892789 (third-party-advisory)
- github.com/T-Chachamaru/seacms-13.6-security-advisories/blob/a084a3e573240d5486… (exploit)
Frequently asked questions
- What is CVE-2026-82602?
- CVE-2026-82602 is a medium-severity vulnerability in Seacms, classified under Improper Authorization. CVSS score: 5.3/10. Published 2026-08-31.
- How severe is CVE-2026-82602?
- Medium severity. CVSS v3 base score is 5.3 out of 10.