CVE-2026-28189 WordPress Participants Database plugin <= 2.7.8.4 - Arbitrary File Deletion vulnerability
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
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-28189?
CVE-2026-28189 is a high-severity path traversal vulnerability in Roland Barker Participants Database, published on 13 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Unauthenticated Arbitrary File Deletion in Participants Database <= 2.7.8.4 versions.
Weakness: CWE-22
Which versions are affected by CVE-2026-28189?
How do I fix CVE-2026-28189?
No fix has been published for CVE-2026-28189 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-2026-28189 being exploited?
There is no known exploitation of CVE-2026-28189 in the wild and no public exploit code.
Sources
Also known as GHSA-ggcw-rwmj-9238.