What’s Vulnerable › Vulnerabilities
CVE-2026-13169: Eventin < 4.1.21 - Contributor+ Arbitrary Event Modification, Deletion and Ownership Takeover via IDOR
- Severity: high (CVSS 8.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-19 · updated 2026-10-22
- Weakness: CWE-639
Description
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.
Affected products
- Eventin: before 4.1.21 — fixed in 4.1.21
How to fix
Upgrade to a fixed version: Eventin 4.1.21. Check the vendor advisory for mitigations.
References
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