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CVE-2021-24943: The Registrations for the Events Calendar WordPress plugin before 2.7.6 does not sanitise and escape the event_id in the rtec_send_unregister_link AJAX action (available to both unauthenticated and au

critical Affects registrations-for-the-events-calendar (WordPress plugin). Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified .

The Registrations for the Events Calendar WordPress plugin before 2.7.6 does not sanitise and escape the event_id in the rtec_send_unregister_link AJAX action (available to both unauthenticated and au

Package
registrations-for-the-events-calendar (WordPress plugin) WordPress
Affected versions
<2.7.6
Fixed in
2.7.6
Severity
critical  CVSS 9.8
Exploitation
not on CISA KEV · EPSS 7% (94.4th percentile)
Published
2021-12-06
Source
nvd

References

CWE-89
NVD recordregistrations-for-the-events-calendar (WordPress plugin) advisories

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