CVE-2026-16546 Wired Impact Volunteer Management < 2.8.2 - Subscriber+ Arbitrary RSVP Removal via wivm_remove_rsvp
Subscribers can remove arbitrary RSVPs from volunteer opportunities due to missing authorization checks in the Wired Impact Volunteer Management plugin.
- 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-2026-16546?
CVE-2026-16546 is a medium-severity missing authorization vulnerability in Unknown Wired Impact Volunteer Management, published on 4 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Wired Impact Volunteer Management WordPress plugin before 2.8.2 does not have authorisation checks in one of its AJAX actions, and does not verify that the RSVP being removed belongs to the requesting user, allowing users with a role as low as Subscriber to remove arbitrary users' RSVPs from any volunteer opportunity.
Weakness: CWE-862
Which versions are affected by CVE-2026-16546?
How do I fix CVE-2026-16546?
No fix has been published for CVE-2026-16546 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-2026-16546 being exploited?
There is no known exploitation of CVE-2026-16546 in the wild and no public exploit code.
Sources
Also known as GHSA-32f3-4hg9-xrh4.