Auth bypass in Wired Impact Volunteer Management

CVE-2026-16546

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.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (17.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-16546: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • Wired Impact Volunteer Management — versions 0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-16546?
CVE-2026-16546 is a medium-severity vulnerability in Wired Impact Volunteer Management, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-08-04.
How severe is CVE-2026-16546?
Medium severity. CVSS v3 base score is 4.3 out of 10.