RCE in Seacms
CVE-2026-82598
A vulnerability was determined in SeaCMS up to 13.6. Affected is the function parseIf of the file search.php of the component Template Engine. This manipulation of the argument searchtype causes code injection. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.005 (42.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.5% 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/397100 (technical-description, vdb-entry)
- vuldb.com/vuln/397100/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-82598 (third-party-advisory)
- vuldb.com/submit/892763 (third-party-advisory)
- github.com/T-Chachamaru/seacms-13.6-security-advisories/blob/a084a3e573240d5486… (exploit)
Frequently asked questions
- What is CVE-2026-82598?
- CVE-2026-82598 is a high-severity vulnerability in Seacms, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.3/10. Published 2026-08-31.
- How severe is CVE-2026-82598?
- High severity. CVSS v3 base score is 7.3 out of 10.