Simple Restrict Plugin up to 1.2.8 on WordPress REST API authorization

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Simple Restrict Plugin up to 1.2.8. This issue affects some unknown processing of the component REST API. Performing a manipulation results in authorization. This vulnerability was named CVE-2026-15939. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Simple Restrict Plugin up to 1.2.8. It has been classified as problematic. This affects an unknown functionality of the component REST API. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. This is going to have an impact on confidentiality. The summary by CVE is:

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.

It is possible to read the advisory at wpscan.com. This vulnerability is uniquely identified as CVE-2026-15939 since 07/16/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.2.9 eliminates this vulnerability.

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Productinfo

Type

• WordPress Plugin

Name

• Simple Restrict Plugin

Version

• 1.2.0
• 1.2.1
• 1.2.2
• 1.2.3
• 1.2.4
• 1.2.5
• 1.2.6
• 1.2.7
• 1.2.8

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CPE 2.2info

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