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CVE-2026-67394

Quick assessment

Affected
WebPros Plesk
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.

WebPros Plesk是WebPros公司的一款网站服务器管理平台。 WebPros Plesk 18.0.34至18.0.79.9之前版本和18.0.80至18.0.80.5之前版本存在命令注入漏洞，该漏洞源于操作系统命令注入，可能导致具有shell访问权限的客户或经销商将权限提升至root账户。

CVSS 9.0 · Critical EPSS 1.29% · P70

Affected Version Matrix 2

VendorProduct Version RangeStatus
WebPros Plesk 18.0.34< 18.0.79.9 affected
18.0.80< 18.0.80.5 affected
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I. Basic Information for CVE-2026-67394

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A critical local privilege escalation via OS command injection vulnerability has been discovered in Plesk for Linux, affecting all versions from 18.0.34 before 18.0.79.9 and 18.0.80.5. The vulnerability allows a customer or reseller with shell access (or allowed to change their own shell access) to elevate privileges to the root account on the hosting server.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
WebPros Plesk 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WebPros Plesk是WebPros公司的一款网站服务器管理平台。 WebPros Plesk 18.0.34至18.0.79.9之前版本和18.0.80至18.0.80.5之前版本存在命令注入漏洞，该漏洞源于操作系统命令注入，可能导致具有shell访问权限的客户或经销商将权限提升至root账户。
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
WebPros Plesk 18.0.34 ~ 18.0.79.9 -

II. Public POCs for CVE-2026-67394

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III. Intelligence Information for CVE-2026-67394

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Vendor Advisories for CVE-2026-67394 (1)

IV. Related Vulnerabilities

Same product: Plesk
Same vendor: WebPros
Same weakness: CWE-78

V. Comments for CVE-2026-67394

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