CVE-2018-21004: Carrcommunications Rsvpmaker

Critical severity, CVSS 9.8. EPSS: 2.2% chance of exploitation in the next 30 days.

The rsvpmaker plugin before 5.6.4 for WordPress has SQL injection.

Affected products

• Carrcommunications Rsvpmaker: before 5.6.4 (fixed in 5.6.4)

Published 2019-08-27. Last modified 2026-06-17.