CVE-2026-15939: CWE-863 Incorrect Authorization in Simple Restrict
The Simple Restrict WordPress plugin before 1.2.9 does not enforce its content-restriction permission check on the REST API the way it does on the front end, relying there on a generic capability check instead of the Simple Restrict WordPress plugin before 1.2.9's own permission system, allowing users with contributor-level access or above to read the content of restricted posts and pages they were never granted access to.
AI Analysis
Technical Summary
CVE-2026-15939 is an incorrect authorization vulnerability (CWE-863) in the Simple Restrict WordPress plugin versions prior to 1.2.9. The plugin does not properly enforce its content-restriction permission checks on the REST API endpoints, relying instead on a generic capability check that is less restrictive. As a result, users with contributor-level privileges or above can access restricted content via the REST API that they are not authorized to view through the front-end interface.
Potential Impact
Users with contributor-level access or higher can bypass content restrictions on posts and pages by accessing the REST API, potentially exposing sensitive or restricted content that should be protected by the plugin's permission system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider restricting REST API access to trusted users or disabling the REST API endpoints related to content restriction if feasible.
CVE-2026-15939: CWE-863 Incorrect Authorization in Simple Restrict
Description
The Simple Restrict WordPress plugin before 1.2.9 does not enforce its content-restriction permission check on the REST API the way it does on the front end, relying there on a generic capability check instead of the Simple Restrict WordPress plugin before 1.2.9's own permission system, allowing users with contributor-level access or above to read the content of restricted posts and pages they were never granted access to.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-15939 is an incorrect authorization vulnerability (CWE-863) in the Simple Restrict WordPress plugin versions prior to 1.2.9. The plugin does not properly enforce its content-restriction permission checks on the REST API endpoints, relying instead on a generic capability check that is less restrictive. As a result, users with contributor-level privileges or above can access restricted content via the REST API that they are not authorized to view through the front-end interface.
Potential Impact
Users with contributor-level access or higher can bypass content restrictions on posts and pages by accessing the REST API, potentially exposing sensitive or restricted content that should be protected by the plugin's permission system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider restricting REST API access to trusted users or disabling the REST API endpoints related to content restriction if feasible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-16T08:48:43.957Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a6f99c9bf32cb7a344bda1a
Added to database: 08/02/2026, 19:26:01 UTC
Last enriched: 08/02/2026, 19:28:06 UTC
Last updated: 08/03/2026, 01:47:19 UTC
Views: 5
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.