CVE-2026-13390

The Events Calendar WordPress plugin before 6.16.5.1 does not perform an authorization check on one of its Event Aggregator import REST API routes and skips an integrity check for a particular status value, allowing unauthenticated attackers to mark existing import records as failed and to store arbitrary content in a hidden comment record.

CVSS v3.1

5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS

0.18% chance of exploitation in the next 30 days, 8th percentile

Published

2026-07-27

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/c7d3b1c5-3b3a-4359-aa41-0dfccb091fa4/

References

• CVE Record
• NVD entry

Related

• CVE-2026-13389
• CVE-2026-13392
• CVE-2026-1338
• CVE-2026-13393
• CVE-2026-1337
• CVE-2026-13395