SQL Injection in Roundupwp Registrations For The Events Calendar

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.

Vulnerability class: SQL Injection

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.073 (94.2th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-24943: held from 0.075 to 0.073.

EPSS over last 30 days · oldest: 0.075 · newest: 0.073 · change: -0.002

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-24943?
CVE-2021-24943 is a critical-severity vulnerability in Roundupwp Registrations For The Events Calendar, classified under SQL Injection. CVSS score: 9.8/10. Published 2021-12-06.
How severe is CVE-2021-24943?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-24943 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.