Vulnerability in Siteserver Sscms
CVE-2026-124575
A vulnerability was identified in SiteServer SSCMS up to 7.1.3/7.2.1/7.4.0. This issue affects the function LoginController.Submit of the file src/SSCMS.Web/Controllers/Admin/LoginController.Submit.cs of the component Admin-Login CAPTCHA. Such manipulation of the argument isForceLogoutAndLogin leads to improper restriction of excessive authentication attempts. It is possible to launch the attack remotely. A high complexity level is associated with this attack. The exploitability is assessed as difficult. The name of the patch is df3becb7ebb00a48435418a44fd08a459eb38ace. Applying a patch is advised to resolve this issue.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Siteserver Sscms — versions 7.0, 7.1, 7.1.0
Weakness classification (CWE)
References
- vuldb.com/vuln/432921 (technical-description, vdb-entry)
- vuldb.com/vuln/432921/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-124575 (third-party-advisory)
- vuldb.com/submit/1038068 (third-party-advisory)
- github.com/siteserver/cms/blob/15144f30c6cc0e11d50985b6ab9236cfce8cacbd/src/SSC… (related)
- github.com/siteserver/cms/pull/3905 (issue-tracking, patch)
- github.com/siteserver/cms/commit/df3becb7ebb00a48435418a44fd08a459eb38ace (patch)
Frequently asked questions
- What is CVE-2026-124575?
- CVE-2026-124575 is a low-severity vulnerability in Siteserver Sscms, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 3.7/10. Published 2026-11-09.
- How severe is CVE-2026-124575?
- Low severity. CVSS v3 base score is 3.7 out of 10.