CVE-2026-16582CWE-862broken-access-control

CVE-2026-16582

Medium · published September 18, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
13.0
In the wild
Unconfirmed
What it is

The Booking for Appointments and Events Calendar – Amelia plugin for WordPress is vulnerable to unauthorized modification of data in all versions up to, and including, 2.4.5. This is due to the plugin accepting a client-supplied package-redemption identifier as proof of payment without validating it. This makes it possible for unauthenticated attackers to create approved appointment bookings without completing payment

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00230 · 13.0th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-09-18T02:16Z
References (2)
https://plugins.trac.wordpress.org/changeset/3640186 · [email protected]https://www.wordfence.com/threat-intel/vulnerabilities/id/9e0c6f83-f4ca-4891-b2db-e2ac49d96ee5?source=cve · [email protected]
EPSS history
Timeline
  • 19 SEP 03:50Z
    EPSS moved — → 0%
    epss
  • 17 SEP 21:28Z
    Booking for Appointments and Events Calendar - Amelia <= 2.4.5 - Missing Authorization to Unauthenticated Payment Bypass
    cvelistv5