RCE in Stilleshan Serverstatus
CVE-2026-90502
A vulnerability was detected in stilleshan ServerStatus 1.0/2.0. Impacted is an unknown function of the file server/src/main.cpp of the component Stats Generation. Performing a manipulation of the argument custom results in cross site scripting. It is possible to initiate the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: XSS (Cross-Site Scripting)
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.
Affected products
- Stilleshan Serverstatus — versions 1.0, 2.0
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, vdb-entry)
- cna@vuldb.com (signature, permissions-required)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (exploit)
Frequently asked questions
- What is CVE-2026-90502?
- CVE-2026-90502 is a low-severity vulnerability in Stilleshan Serverstatus, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2026-09-13.
- How severe is CVE-2026-90502?
- Low severity. CVSS v3 base score is 3.5 out of 10.