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CVE-2026-65646

Improper neutralization of special elements in in Plesk's DNS zone management functionality allows remote authenticated users to disclose…

Critical9.9EPSS 0.70%
Published
Updated
Reserved
Assigned by
hackerone

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.

Scores

CVSS scores of CVE-2026-65646, by who scored it
Scored byCVSSScoreVector
hackeroneCNA (assigner)3.0Critical9.9CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
NVDNVD · Awaiting Analysis3.0Critical9.9CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.70% · top 47% of all CVEs (5 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.9.

Weakness

Affected products

  • WebPros · Plesk

    • affected < 18.0.79.11
    • affected 18.0.80 – < 18.0.80.7

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .