CVE-2026-124575
SiteServer SSCMS Admin-Login CAPTCHA LoginController.Submit.cs LoginController.Submit excessive authentication
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.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulDBFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulDBAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| SSCMS SiteServer |
7.0 (affected) 7.1 (affected) 7.1.0 (affected) 7.1.1 (affected) 7.1.2 (affected) 7.1.3 (affected) 7.2 (affected) 7.2.0 (affected) 7.2.1 (affected) 7.3 (affected) 7.4.0 (affected) |
CNA: VulDB |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 6.3 medium |
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X | CNA: VulDB |
| 3.1 / 3.7 low |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C | CNA: VulDB |
| 3.0 / 3.7 low |
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C | CNA: VulDB |
| 2.0 / 2.6 low |
AV:N/AC:H/Au:N/C:P/I:N/A:N/E:ND/RL:OF/RC:C | CNA: VulDB |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://vuldb.com/vuln/432921CNA: VulDB · vdb-entry, technical-description
- https://vuldb.com/vuln/432921/ctiCNA: VulDB · signature, permissions-required
- https://vuldb.com/cve/CVE-2026-124575CNA: VulDB · third-party-advisory
- https://vuldb.com/submit/1038068CNA: VulDB · third-party-advisory
- https://github.com/siteserver/cms/blob/15144f30c6cc0e11d50985b6ab9236cfce8cacbd/src/SSCMS.Web/Controllers/Admin/LoginController.Submit.cs#L46CNA: VulDB · related
- https://github.com/siteserver/cms/pull/3905CNA: VulDB · issue-tracking, patch
- https://github.com/siteserver/cms/commit/df3becb7ebb00a48435418a44fd08a459eb38aceCNA: VulDB · patch
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