CVE-2026-84907: CWE-862 Missing Authorization in Eventin
The Eventin WordPress plugin versions from 4.1.5 up to but not including 4.1.24 contains a missing authorization vulnerability. This flaw allows unauthenticated attackers to reset existing orders and their attendees to a pending state by exploiting a nonce exposed to unauthenticated visitors and the lack of ownership verification. This can invalidate paid tickets when the offline (local) payment method is enabled.
AI Analysis
Technical Summary
CVE-2026-84907 describes a missing authorization vulnerability (CWE-862) in the Eventin WordPress plugin before version 4.1.24. The plugin improperly authorizes order finalization when the offline payment method is enabled. It relies on a nonce that is accessible to unauthenticated users and does not verify that the caller owns the order. This allows unauthenticated attackers to reset any existing order and its attendees to a pending state, effectively invalidating paid tickets.
Potential Impact
An unauthenticated attacker can reset orders and attendees to a pending state, potentially invalidating paid tickets. This could disrupt event management and ticketing processes, causing financial and operational issues for event organizers using affected versions of the plugin.
Mitigation Recommendations
Upgrade the Eventin plugin to version 4.1.24 or later, where this authorization issue has been fixed. No other mitigation details are provided, so applying the official patch is the recommended action.
CVE-2026-84907: CWE-862 Missing Authorization in Eventin
Description
The Eventin WordPress plugin versions from 4.1.5 up to but not including 4.1.24 contains a missing authorization vulnerability. This flaw allows unauthenticated attackers to reset existing orders and their attendees to a pending state by exploiting a nonce exposed to unauthenticated visitors and the lack of ownership verification. This can invalidate paid tickets when the offline (local) payment method is enabled.
Affected software
Eventin
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-84907 describes a missing authorization vulnerability (CWE-862) in the Eventin WordPress plugin before version 4.1.24. The plugin improperly authorizes order finalization when the offline payment method is enabled. It relies on a nonce that is accessible to unauthenticated users and does not verify that the caller owns the order. This allows unauthenticated attackers to reset any existing order and its attendees to a pending state, effectively invalidating paid tickets.
Potential Impact
An unauthenticated attacker can reset orders and attendees to a pending state, potentially invalidating paid tickets. This could disrupt event management and ticketing processes, causing financial and operational issues for event organizers using affected versions of the plugin.
Mitigation Recommendations
Upgrade the Eventin plugin to version 4.1.24 or later, where this authorization issue has been fixed. No other mitigation details are provided, so applying the official patch is the recommended action.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-02T15:31:37.601Z
- State
- PUBLISHED
Threat ID: 6aaa32e055bf5e2cf517fb32
Added to database: 09/16/2026, 06:10:40 UTC
Last enriched: 09/16/2026, 06:19:35 UTC
Last updated: 09/16/2026, 16:22:28 UTC
Views: 11
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