CVE-2026-13390 — MEDIUM (5.3)

Vulnerability Description

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 Score

5.3

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-862

References

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

FAQ

What is CVE-2026-13390?

CVE-2026-13390 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 ...

How severe is CVE-2026-13390?

CVE-2026-13390 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-13390?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.