CVE-2026-59555 WordPress Participants Database plugin <= 2.7.8.3 - Arbitrary File Deletion vulnerability

Critical 10.0 Published Updated

Unauthenticated attackers can delete arbitrary files on the server via path traversal in the Participants Database plugin.

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

What is CVE-2026-59555?

CVE-2026-59555 is a critical path traversal vulnerability in Roland Barker Participants Database, published on 23 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Unauthenticated Arbitrary File Deletion in Participants Database <= 2.7.8.3 versions.

Weakness: CWE-22

Which versions are affected by CVE-2026-59555?

How do I fix CVE-2026-59555?

No fix has been published for CVE-2026-59555 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-2026-59555 being exploited?

There is no known exploitation of CVE-2026-59555 in the wild and no public exploit code.

Sources

Also known as GHSA-qghf-ghh2-vwvg.

Is CVE-2026-59555 in your software?

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