CVE-2026-91109

The Simply Schedule Appointments plugin for WordPress is vulnerable to an Insecure Direct Object Reference (IDOR) in versions up to and including 1.6.12.31 . The root cause is a lack of validation on a user-controlled key within the 'complete_group' parameter. Authenticated attackers with subscri...

EUVD-2026-90466

The Simply Schedule Appointments plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.6.12.31 via the 'completegroup' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with...