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CVE-2025-66430 is a critical privilege-escalation vulnerability in Plesk for Linux affecting the Password-Protected Directories feature. The flaw stems from incorrect access control and insufficient privilege boundary enforcement in functionality that permits a low-privileged authenticated Plesk user with access to this feature to inject arbitrary data into Apache configuration files. Because the affected backend operations execute with elevated system privileges, a successful attacker can leverage the configuration injection path to trigger command execution as root on the underlying server. Reported affected versions include Plesk 18.0.70 through 18.0.74, and Plesk Onyx installations are also reported as impacted.
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15 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A related Plesk privilege escalation vulnerability in the Password Protected Directories feature that allowed low-privileged Plesk users to gain root-level access.
A vulnerability in Plesk. No further details provided in the content.
A local privilege escalation vulnerability in Plesk for Linux allowing authenticated users to gain root privileges via the Password-Protected Directories feature.
A critical local privilege escalation vulnerability in Plesk for Linux's Password-Protected Directories feature, allowing attackers to inject arbitrary data into Apache configuration files and execute commands as root.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.