CVE-2026-84743: CWE-863 Incorrect Authorization in The Events Calendar
The Events Calendar WordPress plugin before 6.17.5 does not perform a per-object capability check on one family of its REST write routes, allowing users with a low-privilege role such as contributor to modify, unpublish, trash and take ownership of records belonging to other users, including administrators.
AI Analysis
Technical Summary
CVE-2026-84743 is an authorization bypass vulnerability (CWE-863) in The Events Calendar WordPress plugin versions from 6.15.16.1 up to but not including 6.17.5. The plugin fails to perform per-object capability checks on certain REST write routes, enabling low-privilege users to perform unauthorized actions on records owned by other users, including those with administrative privileges.
Potential Impact
Exploitation of this vulnerability allows low-privilege users to modify or delete content owned by other users, including administrators. This could lead to unauthorized content changes, loss of data integrity, and potential privilege escalation through ownership takeover of records.
Mitigation Recommendations
Upgrade The Events Calendar plugin to version 6.17.5 or later, where this authorization issue has been fixed. No other mitigation is indicated by the vendor advisory.
CVE-2026-84743: CWE-863 Incorrect Authorization in The Events Calendar
Description
The Events Calendar WordPress plugin before 6.17.5 does not perform a per-object capability check on one family of its REST write routes, allowing users with a low-privilege role such as contributor to modify, unpublish, trash and take ownership of records belonging to other users, including administrators.
Affected software
The Events Calendar
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-84743 is an authorization bypass vulnerability (CWE-863) in The Events Calendar WordPress plugin versions from 6.15.16.1 up to but not including 6.17.5. The plugin fails to perform per-object capability checks on certain REST write routes, enabling low-privilege users to perform unauthorized actions on records owned by other users, including those with administrative privileges.
Potential Impact
Exploitation of this vulnerability allows low-privilege users to modify or delete content owned by other users, including administrators. This could lead to unauthorized content changes, loss of data integrity, and potential privilege escalation through ownership takeover of records.
Mitigation Recommendations
Upgrade The Events Calendar plugin to version 6.17.5 or later, where this authorization issue has been fixed. No other mitigation is indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-02T08:41:21.163Z
- State
- PUBLISHED
Threat ID: 6ab36d42f7a7c541065abcae
Added to database: 09/23/2026, 06:10:10 UTC
Last enriched: 09/23/2026, 06:32:39 UTC
Last updated: 09/23/2026, 13:47:49 UTC
Views: 4
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