WordPress security changelog
MEDIUM CVE-2026-13175 Deferred

Eventin Contributors can modify or delete other users' schedules

Eventin before 4.1.21 does not verify schedule ownership before allowing a record to be modified or deleted. A Contributor can select schedule entries created by another user and alter or remove them.

CVE / CNA score 6.5 CVSS 3.1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD score Pending NVD has not published its own CVSS assessment.
Component
Eventin
Plugin slug
wp-event-solution
Affected
< 4.1.21
Safe version
4.1.21
Published
Aug 19, 2026
Weakness
CWE-639 — Authorization Bypass Through User-Controlled Key

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 schedule changes 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 verify ownership before allowing schedule records to be modified or deleted, allowing users with contributor-level access and above to alter or delete schedule entries created by other users.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

Primary and upstream sources