SiteServer SSCMS Admin-Login CAPTCHA LoginController.Submit.cs LoginController.Submit excessive authentication

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-124575
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-09 07:17:32 UTC
Updated2026-11-09 07:17:32 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v4.0 6.3 MEDIUM from [email protected]

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.004080000 probability, percentile 0.353940000 (date 2026-11-09)

Problem Types: CWE-307 | CWE-799 | CWE-307 Improper Restriction of Excessive Authentication Attempts | CWE-799 Improper Control of Interaction Frequency

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary6.3MEDIUMCVSS: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/C...
4.0CNADECLARED6.3MEDIUMCVSS: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
3.1[email protected]Primary3.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
3.1CNADECLARED3.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C
3.0CNADECLARED3.7LOWCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C
2.0[email protected]Secondary2.6AV:N/AC:H/Au:N/C:P/I:N/A:N
2.0CNADECLARED2.6AV:N/AC:H/Au:N/C:P/I:N/A:N/E:ND/RL:OF/RC:C

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
High
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA SiteServer SSCMS affected 7.0 Not specified
CNA SiteServer SSCMS affected 7.1 Not specified
CNA SiteServer SSCMS affected 7.1.0 Not specified
CNA SiteServer SSCMS affected 7.1.1 Not specified
CNA SiteServer SSCMS affected 7.1.2 Not specified
CNA SiteServer SSCMS affected 7.1.3 Not specified
CNA SiteServer SSCMS affected 7.2 Not specified
CNA SiteServer SSCMS affected 7.2.0 Not specified
CNA SiteServer SSCMS affected 7.2.1 Not specified
CNA SiteServer SSCMS affected 7.3 Not specified
CNA SiteServer SSCMS affected 7.4.0 Not specified

References

ReferenceSourceLinkTags
vuldb.com/vuln/432921 [email protected] vuldb.com
vuldb.com/vuln/432921/cti [email protected] vuldb.com
vuldb.com/cve/CVE-2026-124575 [email protected] vuldb.com
github.com/siteserver/cms/pull/3905 [email protected] github.com
vuldb.com/submit/1038068 [email protected] vuldb.com
github.com/siteserver/cms/commit/df3becb7ebb00a48435418a44fd08a459eb38ace [email protected] github.com
github.com/siteserver/cms/blob/15144f30c6cc0e11d50985b6ab9236cfce8cacbd/... [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: The_S7s (VulDB User) (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-11-08T00:00:00.000ZAdvisory disclosed
CNA2026-11-08T01:00:00.000ZVulDB entry created
CNA2026-11-08T18:03:03.000ZVulDB entry last update

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