CVE-2026-106166: CWE-639 Authorization Bypass Through User-Controlled Key in NEX-Forms
Description
The NEX-Forms WordPress plugin before 9.3.1 does not perform any authorization, ownership or request-validation checks before updating stored form entries, allowing unauthenticated attackers to overwrite, permanently erase, reassign or append to any previously submitted form entry by referencing its sequential identifier.
CVSS v3.1
Score 5.3medium
Affected software
NEX-Forms
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-106166 is an authorization bypass vulnerability in the NEX-Forms WordPress plugin before version 9.3.1. The flaw arises because the plugin fails to perform authorization, ownership, or request-validation checks prior to updating stored form entries. Consequently, unauthenticated attackers can manipulate form entries by referencing their sequential identifiers, enabling overwriting, permanent erasure, reassignment, or appending of data to existing form submissions.
Potential Impact
An attacker without authentication can modify any stored form entry arbitrarily, potentially leading to data corruption, loss of integrity, or unauthorized data manipulation within the affected WordPress site. This could affect the reliability of form data and may impact business processes relying on accurate form submissions.
Mitigation Recommendations
A fixed version of the NEX-Forms plugin is available at version 9.3.1 or later. Users should upgrade to version 9.3.1 or above to remediate this vulnerability. No other mitigation guidance is provided.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-10-06T16:06:36.968Z
- State
- PUBLISHED
Threat ID: 6acf22532cdf04f6565137a1
Added to database: 10/14/2026, 06:33:55 UTC
Last enriched: 10/14/2026, 07:18:57 UTC
Last updated: 10/14/2026, 14:04:16 UTC
Views: 4
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