CVE-2021-24943

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

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 authenticated users) before using it in a SQL statement, leading to an unauthenticated SQL injection.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-89

Affected software

VendorProductVersions
UnknownRegistrations for the Events Calendar – Event Registration Plugin>= 2.7.6, < 2.7.6

References

Timeline

Published
Dec 6, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-24943: Critical severity, CVSS 9.8 | Vulnix