CVE-2021-24943

high-risk
Published 2021-12-06

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.

Do I need to act?

!
55.5% chance of exploitation in next 30 days
EPSS score — higher than 45% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Registrations For The Events Calendar

Affected Vendors

55
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 18/34 · Moderate
Exposure 5/34 · Minimal