Vulnerability details

CVE-2026-65646

WebPros Plesk

CVSS 3.0

9.9Critical

Official description

Improper neutralization of special elements in in Plesk's DNS zone management functionality allows remote authenticated users to disclose arbitrary local files and escalate privileges.

CVSS scores

Score	Version	Source	Vector
9.9Critical	3.0	CVEProject cvelistV5 (CNA) (hackerone)	`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
WebPros	Plesk	v < 18.0.79.11	CVEProject cvelistV5 (CNA)
WebPros	Plesk	18.0.80 ≤ v < 18.0.80.7	CVEProject cvelistV5 (CNA)

References and advisories

https://support.plesk.com/hc/en-us/articles/42877023875351-Vulnerability-CVE-2026-65646-in-Plesk-s-DNS-zone-management-functionality

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Details

Published: 2026-08-27
Last updated: 2026-09-11
State: Published
Assigner (CNA): hackerone

Exploit prediction (EPSS)

0.69%

Probability of exploitation in 30 days

53.2%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-74
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')