CVE-2021-24943

CRITICALCVSS 9.8/10EPSS 7.47%

Last modified

CVE-2021-24943 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 7.47% chance of exploitation in the next 30 days.

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
9.8/10

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

EPSS Probability
7.47%

93.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RoundupwpRegistrations For The Events Calendar< 2.7.6

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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 authenticated users) before using it in a SQL statement, leading to an unauthenticated SQL injection.
How severe is CVE-2021-24943?
CVE-2021-24943 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 7.47% probability of exploitation in the next 30 days.
How do I fix CVE-2021-24943?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-24943?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST