CVE-2026-14215 Booking for Appointments and Events Calendar CVE debrief

Who should care

Administrators of WordPress sites using the Booking for Appointments and Events Calendar plugin, as well as security teams monitoring for potential unauthorized actions, should be aware of this vulnerability. Its impact extends to operators managing these sites, as they may need to verify deployments, ensure patching, and review security configurations to mitigate potential risks. Vulnerability management and security teams should prioritize this issue due to its potential for exploitation and the importance of securing booking-related functionalities.

Technical summary

The Booking for Appointments and Events Calendar WordPress plugin before 2.4.9 does not require authentication or a valid request token before running the post-booking action chain. This allows an unauthenticated user to trigger booking notifications and integration callbacks for a booking by enumerating its identifier. The technical impact of this vulnerability includes potential unauthorized actions on affected WordPress sites, emphasizing the need for prompt patching and monitoring.

Defensive priority

Medium priority due to potential for unauthorized actions

Recommended defensive actions

• Verify the version of the Booking for Appointments and Events Calendar WordPress plugin and update to 2.4.9 or later if necessary
• Restrict access to booking notifications and integration callbacks to authenticated users only
• Monitor for suspicious activity related to booking notifications and integration callbacks
• 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
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The evidence from NVD and WPScan suggests that the Booking for Appointments and Events Calendar WordPress plugin has a vulnerability allowing unauthenticated users to trigger booking notifications and integration callbacks. However, details about the specific scope of affected deployments, potential impact on various platforms, and required verification steps for defenders remain limited. Further review of official advisories and source references is recommended to understand the full extent of this vulnerability.

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.