CVE-2026-27398 WordPress RSVP and Event Management plugin <= 2.7.16 - Broken Access Control vulnerability
Attackers can bypass access controls in the WP Chill RSVP and Event Management plugin to perform unauthorized actions.
- 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-2026-27398?
CVE-2026-27398 is a medium-severity missing authorization vulnerability in WP Chill RSVP and Event Management, published on 25 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Missing Authorization vulnerability in WP Chill RSVP and Event Management allows Exploiting Incorrectly Configured Access Control Security Levels.
This issue affects RSVP and Event Management: from n/a through 2.7.16.
Weakness: CWE-862
Which versions are affected by CVE-2026-27398?
How do I fix CVE-2026-27398?
No fix has been published for CVE-2026-27398 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-27398 being exploited?
There is no known exploitation of CVE-2026-27398 in the wild and no public exploit code.
Sources
Also known as GHSA-ffph-c23r-mr7q.