Eventin Contributors can alter, delete or take ownership of other users' events
Eventin before 4.1.21 does not properly verify event ownership before modification, deletion or author reassignment. A Contributor can target events created by other users, including administrators, and alter, remove or take ownership of them.
- Component
- Eventin
- Plugin slug
wp-event-solution- Affected
- < 4.1.21
- Safe version
4.1.21- Published
- Aug 19, 2026
This CVE was published Aug 19, 2026 and is one of 45 known issues for this plugin.
Update, patch or deactivate.
Update Eventin to 4.1.21 or later and audit event changes, deletions and author reassignments made by Contributor-level accounts.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical 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.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N