CVE-2026-16603: CWE-200 Information Exposure in Passster
The Passster WordPress plugin before 4.3.6 does not enforce its category-based content protection on the WordPress REST API, allowing unauthenticated users to read the full content, title, and excerpt of category-locked posts through the core REST API.
AI Analysis
Technical Summary
CVE-2026-16603 describes an information exposure vulnerability in the Passster WordPress plugin versions prior to 4.3.6. The plugin's category-based content protection does not apply to the WordPress REST API endpoints, enabling unauthenticated users to retrieve protected post content, including full content, titles, and excerpts, via the core REST API. This bypasses intended access controls and exposes sensitive content without authentication.
Potential Impact
Unauthenticated users can read the full content, titles, and excerpts of posts that are meant to be protected by category-based restrictions. This leads to unintended disclosure of potentially sensitive or restricted information. There is no indication of further impact such as code execution or privilege escalation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider disabling the REST API or restricting access to it via other means to prevent unauthorized content exposure.
CVE-2026-16603: CWE-200 Information Exposure in Passster
Description
The Passster WordPress plugin before 4.3.6 does not enforce its category-based content protection on the WordPress REST API, allowing unauthenticated users to read the full content, title, and excerpt of category-locked posts through the core REST API.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-16603 describes an information exposure vulnerability in the Passster WordPress plugin versions prior to 4.3.6. The plugin's category-based content protection does not apply to the WordPress REST API endpoints, enabling unauthenticated users to retrieve protected post content, including full content, titles, and excerpts, via the core REST API. This bypasses intended access controls and exposes sensitive content without authentication.
Potential Impact
Unauthenticated users can read the full content, titles, and excerpts of posts that are meant to be protected by category-based restrictions. This leads to unintended disclosure of potentially sensitive or restricted information. There is no indication of further impact such as code execution or privilege escalation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider disabling the REST API or restricting access to it via other means to prevent unauthorized content exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-22T14:20:50.104Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a72d7aebf8831d5395e82b3
Added to database: 08/05/2026, 06:26:54 UTC
Last enriched: 08/05/2026, 07:02:16 UTC
Last updated: 08/06/2026, 00:41:11 UTC
Views: 4
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