CVE-2026-11992 easyappointments CVE debrief

Who should care

Users of the Easy Appointments plugin for WordPress, particularly those with author-level access or higher, should be aware of this vulnerability and take immediate action to protect their sites. This includes updating the plugin to the latest version, restricting access to the Appointments admin page, and monitoring for suspicious activity.

Technical summary

The Easy Appointments plugin for WordPress is vulnerable to authorization bypass due to improper verification of user authorization. This allows authenticated attackers with author-level access and above to cancel all upcoming appointments site-wide by marking every future appointment as abandoned. The nonce required for cancellation requests is accessible to low-privileged users on the Appointments admin page, which is gated only by the edit_posts capability that Authors possess.

Defensive priority

High priority for sites using the Easy Appointments plugin, especially those with multiple authors or users with elevated privileges.

Recommended defensive actions

• Update the Easy Appointments plugin to the latest version
• Restrict access to the Appointments admin page to trusted users
• Monitor appointment cancellations for suspicious activity
• Implement additional logging and monitoring for user actions
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The vulnerability was reported by [email protected] and is publicly documented in the CVE record and NVD detail pages. The Easy Appointments plugin for WordPress has an authorization bypass vulnerability in all versions up to and including 3.12.27. This allows authenticated attackers with author-level access and above to cancel all upcoming appointments site-wide. The nonce required for cancellation requests is accessible to low-privileged users on the Appointments admin page, which is gated only by the edit_posts capability that Authors possess. Evidence limits suggest that further verification is needed to confirm affected scope and severity.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.