CVE-2026-68487 Path traversal in Plesk

Critical 9.9 Published Updated

An authenticated customer can exploit a path traversal in Plesk's Backup Manager to write arbitrary files as root, leading to potential code execution and privilege escalation.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-68487?

CVE-2026-68487 is a critical path traversal vulnerability in WebPros Plesk, published on 10 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Path traversal in Plesk's Backup Manager causes arbitrary file write as root by an authenticated customer.

Weakness: CWE-36

Which versions are affected by CVE-2026-68487?

How do I fix CVE-2026-68487?

No fix has been published for CVE-2026-68487 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-68487 being exploited?

There is no known exploitation of CVE-2026-68487 in the wild and no public exploit code.

Sources

Also known as GHSA-m444-4f6f-9m89.

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