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CVE-2026-124575— SiteServer SSCMS Admin-Login CAPTCHA LoginController.Submit.cs LoginController.Submit excessive authentication

Quick assessment

Affected
SiteServer SSCMS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 SiteServer SSCMS 7.1.3、7.2.1 和 7.4.0 及更早版本中发现了一个安全漏洞。该漏洞影响组件"Admin-Login CAPTCHA"中位于文件 的 函数。通过对参数 进行操纵，可导致对过度认证尝试的限制不当，从而允许攻击者从远程发起攻击。该攻击的复杂度较高，利用难度评估为“困难”。修复补丁的标识为 。建议应用该补丁以修复此问题。

CVSS 3.7 · Low

Possible ATT&CK Techniques 1 AI

T1110 · Brute Force
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I. Basic Information for CVE-2026-124575

Vulnerability Information
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Vulnerability Title
SiteServer SSCMS Admin-Login CAPTCHA LoginController.Submit.cs LoginController.Submit excessive authentication
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
过多认证尝试的限制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
SiteServer SSCMS 7.0 cpe:2.3:a:sscms:sscms:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-124575

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III. Intelligence Information for CVE-2026-124575

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Vendor Advisories for CVE-2026-124575 (1)

Other References for CVE-2026-124575 (6)

IV. Related Vulnerabilities

Same product: SSCMS
Same vendor: SiteServer
Same weakness: CWE-307