CVE-2026-13169: CWE-639 Authorization Bypass Through User-Controlled Key in Eventin
The Eventin WordPress plugin before version 4.1.21 contains an authorization bypass vulnerability. This flaw allows users with contributor-level access or higher to modify, delete, or reassign events created by other users, including administrators, without proper ownership verification.
AI Analysis
Technical Summary
CVE-2026-13169 is an authorization bypass vulnerability in the Eventin WordPress plugin versions prior to 4.1.21. The plugin fails to properly verify event ownership before permitting modifications, deletions, or reassignment of event authorship. This enables users with contributor-level privileges or above to alter or take over events created by other users, including those created by administrators.
Potential Impact
An attacker with contributor-level access or higher can modify or delete events they do not own, or reassign events to themselves. This could lead to unauthorized changes to event data and potential privilege escalation within the WordPress environment. The vulnerability does not affect availability but impacts confidentiality and integrity.
Mitigation Recommendations
A fix is available in Eventin version 4.1.21. Users should upgrade to version 4.1.21 or later to remediate this vulnerability. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-13169: CWE-639 Authorization Bypass Through User-Controlled Key in Eventin
Description
The Eventin WordPress plugin before version 4.1.21 contains an authorization bypass vulnerability. This flaw allows users with contributor-level access or higher to modify, delete, or reassign events created by other users, including administrators, without proper ownership verification.
CVSS v3.1
Score 8.1high
Affected software
Eventin
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-13169 is an authorization bypass vulnerability in the Eventin WordPress plugin versions prior to 4.1.21. The plugin fails to properly verify event ownership before permitting modifications, deletions, or reassignment of event authorship. This enables users with contributor-level privileges or above to alter or take over events created by other users, including those created by administrators.
Potential Impact
An attacker with contributor-level access or higher can modify or delete events they do not own, or reassign events to themselves. This could lead to unauthorized changes to event data and potential privilege escalation within the WordPress environment. The vulnerability does not affect availability but impacts confidentiality and integrity.
Mitigation Recommendations
A fix is available in Eventin version 4.1.21. Users should upgrade to version 4.1.21 or later to remediate this vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-06-24T13:24:34.202Z
- State
- PUBLISHED
Threat ID: 6a854e90c6e8be033248b23b
Added to database: 08/19/2026, 06:34:56 UTC
Last enriched: 09/11/2026, 10:02:30 UTC
Last updated: 10/02/2026, 04:49:49 UTC
Views: 43
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