Auth bypass in Eventin

CVE-2026-13169

The Eventin WordPress plugin before 4.1.21 does not properly verify ownership of events before allowing them to be modified, deleted, or reassigned to a different author, allowing users with contributor-level access and above to alter, delete, or take over events created by other users including administrators.

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

  • Unknown Eventin

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-13169?
CVE-2026-13169 is a high-severity vulnerability in Eventin, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.1/10. Published 2026-08-19.
How severe is CVE-2026-13169?
High severity. CVSS v3 base score is 8.1 out of 10.