Vulnerability details
CVE-2026-67394
WebPros Plesk
CVSS 4.0
9.0Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.0Critical | 4.0 | CVEProject cvelistV5 (CNA) (hackerone) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| WebPros | Plesk | 18.0.34 ≤ v < 18.0.79.9 | CVEProject cvelistV5 (CNA) |
| WebPros | Plesk | 18.0.80 ≤ v < 18.0.80.5 | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-09-01
- Last updated
- 2026-09-01
- State
- Published
- Assigner (CNA)
- hackerone
Exploit prediction (EPSS)
1.28%
Probability of exploitation in 30 days
70.3%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-78OS Command Injection