WebPros Plesk before 18.0.73.5 and 18.0.74 before 18.0.74.2 on Linux allows remote…
Priority LOW 36CWE-61Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
WebPros Plesk before 18.0.73.5 and 18.0.74 before 18.0.74.2 on Linux allows remote authenticated users to execute arbitrary code as root via domain creation. The attacker needs "Create and manage sites" with "Domains management" and "Subdomains management."
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00269 19th percentileScored 2026-11-07
Fix Fixed Plesk (Plesk): 18.0.73.5, 18.0.74.2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Plesk (Plesk) Fixed in 18.0.73.5, 18.0.74.2
Timeline
- 2026-10-02 Threatist record created from CVE-2025-66431
- 2026-10-03 Alias added: GHSA-mp85-3986-vf9p
References
Other 3
- https://docs.plesk.com/release-notes/obsidian/whats-new/
- https://docs.plesk.com/release-notes/obsidian/change-log/#plesk-18074
- https://support.plesk.com/hc/en-us/articles/36494997377687--CVE-2025-66431-Security-vulnerability-in-domain-creation-mechanism-allows-Plesk-users-to-execute-arbitrary-code-on-behalf-of-root
More Plesk vulnerabilities
- TI-2021-20370 Plesk 18.0.37 is affected by a Cross Site Request Forgery (CSRF) vulnerability that… CVSS 3.1MEDIUM 6.5
- TI-2023-09824 A Host Header Injection issue on the Login page of Plesk Obsidian through 18.0.49 allows… CVSS 3.1MEDIUM 6.1
- TI-2025-40863 Plesk 18.0 has Incorrect Access Control. CVSS 3.1CRITICAL 9.1
- TI-2021-20371 Plesk CMS 18.0.37 is affected by an insecure permissions vulnerability that allows… CVSS 3.1HIGH 8.8
- TI-2023-00785 Cross-Site Scripting (XSS) vulnerability in Plesk CVSS 3.1CRITICAL 9.0
- TI-2023-23475 Plesk Onyx 17.8.11 has accessKeyId and secretAccessKey fields that are related to an… CVSS 3.1HIGH 7.5
Sources
- CVE-2025-66431 · CVE Program
- CVE-2025-66431 · NVD
- FIRST EPSS
- GHSA-mp85-3986-vf9p · GitHub Advisory Database · CC BY 4.0
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