CVE-2026-92403: CWE-863 Incorrect Authorization in Secure Custom Fields
The Secure Custom Fields WordPress plugin before 6.9.4 does not properly verify that a front-end form submission corresponds to the form that was rendered to the visitor, allowing unauthenticated users to submit against a different registered form and modify the title and content of the post that form is bound to.
AI Analysis
Technical Summary
CVE-2026-92403 describes an incorrect authorization vulnerability (CWE-863) in the Secure Custom Fields WordPress plugin versions prior to 6.9.4. The plugin fails to verify that a front-end form submission corresponds to the form rendered to the visitor, allowing unauthenticated users to submit data against different registered forms. This can result in unauthorized modification of the title and content of posts associated with those forms.
Potential Impact
An attacker can exploit this vulnerability to modify post titles and content without authentication, potentially leading to unauthorized content changes on affected WordPress sites using vulnerable versions of the plugin.
Mitigation Recommendations
Upgrade the Secure Custom Fields plugin to version 6.9.4 or later, where this authorization issue has been fixed. No other mitigation steps are indicated.
CVE-2026-92403: CWE-863 Incorrect Authorization in Secure Custom Fields
Description
The Secure Custom Fields WordPress plugin before 6.9.4 does not properly verify that a front-end form submission corresponds to the form that was rendered to the visitor, allowing unauthenticated users to submit against a different registered form and modify the title and content of the post that form is bound to.
CVSS v3.1
Score 3.7low
Affected software
Secure Custom Fields
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-92403 describes an incorrect authorization vulnerability (CWE-863) in the Secure Custom Fields WordPress plugin versions prior to 6.9.4. The plugin fails to verify that a front-end form submission corresponds to the form rendered to the visitor, allowing unauthenticated users to submit data against different registered forms. This can result in unauthorized modification of the title and content of posts associated with those forms.
Potential Impact
An attacker can exploit this vulnerability to modify post titles and content without authentication, potentially leading to unauthorized content changes on affected WordPress sites using vulnerable versions of the plugin.
Mitigation Recommendations
Upgrade the Secure Custom Fields plugin to version 6.9.4 or later, where this authorization issue has been fixed. No other mitigation steps are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-16T08:52:01.638Z
- State
- PUBLISHED
Threat ID: 6aae2c6955bf5e2cf5363ade
Added to database: 09/19/2026, 06:32:09 UTC
Last enriched: 09/19/2026, 06:46:48 UTC
Last updated: 09/20/2026, 01:47:11 UTC
Views: 15
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.