CVE-2026-2551 ZenTao Backup control.php delete path traversal

Medium 5.3 Published 16 Feb 2026 Updated 23 Feb 2026

Remote attackers with permissions can exploit a path traversal in ZenTao's backup handler to read or modify arbitrary files.

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-2026-2551?

CVE-2026-2551 is a medium-severity path traversal vulnerability in ZenTao, published on 16 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was determined in ZenTao up to 21.7.8. Affected by this vulnerability is the function delete of the file editor/control.php of the component Backup Handler. This manipulation of the argument fileName causes path traversal. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.

Weakness: CWE-22

Which versions are affected by CVE-2026-2551?

It affects 1 product.

Products include Zentao Zentao.

How do I fix CVE-2026-2551?

No fix has been published for CVE-2026-2551 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-2026-2551 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2551 exists.

Sources

Also known as GHSA-8crw-7238-r6f8.