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CVE-2026-4222— SSCMS download PathUtils.RemoveParentPath path traversal

Quick assessment

Affected
n/a 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（SiteServerCMS）是中国百容千域（SSCMS）公司的一个内容管理系统。 SSCMS 7.4.0及之前版本存在路径遍历漏洞，该漏洞源于对文件/api/admin/plugins/install/actions/download中函数PathUtils.RemoveParentPath的参数path的操作，可能导致路径遍历。

CVSS 3.8 · Low EPSS 0.62% · P48

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-4222

Vulnerability Information
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Vulnerability Title
SSCMS download PathUtils.RemoveParentPath path traversal
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in SSCMS up to 7.4.0. This vulnerability affects the function PathUtils.RemoveParentPath of the file /api/admin/plugins/install/actions/download. This manipulation of the argument path causes path traversal. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
SSCMS 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SSCMS（SiteServerCMS）是中国百容千域（SSCMS）公司的一个内容管理系统。 SSCMS 7.4.0及之前版本存在路径遍历漏洞，该漏洞源于对文件/api/admin/plugins/install/actions/download中函数PathUtils.RemoveParentPath的参数path的操作，可能导致路径遍历。
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
- SSCMS 7.0 cpe:2.3:a:sscms:sscms:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-4222

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III. Intelligence Information for CVE-2026-4222

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Vendor Advisories for CVE-2026-4222 (1)

Proof of Concept for CVE-2026-4222 (1)

Same Patch Batch · n/a · 2026-03-16 · 21 CVEs total

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IV. Related Vulnerabilities

Same product: SSCMS
Same vendor: n/a
Same weakness: CWE-22

V. Comments for CVE-2026-4222

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