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CVE-2026-82486— SiteServer SSCMS Agent Installation Workflow access control

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.

SSCMS是中国SSCMS公司开源的一款企业级内容管理系统。 SSCMS 7.4.0版本存在权限许可和访问控制问题漏洞，该漏洞源于Agent Installation Workflow组件中SecurityKey参数操作不当，导致访问控制不当，可能允许远程攻击者利用该漏洞。

CVSS 5.0 · Medium EPSS 0.33% · P26

Affected Version Matrix 1

VendorProduct Version RangeStatus
SiteServer SSCMS 7.4.0 affected
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I. Basic Information for CVE-2026-82486

Vulnerability Information
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Vulnerability Title
SiteServer SSCMS Agent Installation Workflow access control
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in SiteServer SSCMS 7.4.0. Affected by this issue is some unknown functionality of the component Agent Installation Workflow. Performing a manipulation of the argument SecurityKey results in improper access controls. Remote exploitation of the attack is possible. The attack is considered to have high complexity. The exploitation is known to be difficult. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
SSCMS 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SSCMS是中国SSCMS公司开源的一款企业级内容管理系统。 SSCMS 7.4.0版本存在权限许可和访问控制问题漏洞，该漏洞源于Agent Installation Workflow组件中SecurityKey参数操作不当，导致访问控制不当，可能允许远程攻击者利用该漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
SiteServer SSCMS 7.4.0 cpe:2.3:a:sscms:sscms:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-82486

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III. Intelligence Information for CVE-2026-82486

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Proof of Concept for CVE-2026-82486 (1)

News Coverage for CVE-2026-82486 (1)

Other References for CVE-2026-82486 (2)

IV. Related Vulnerabilities

Same product: SSCMS
Same vendor: SiteServer
Same weakness: CWE-284