cbutlerjr WP-Members Membership Plugin up to 3.5.6 on WordPress cross site scripting

Summaryinfo

A vulnerability labeled as problematic has been found in cbutlerjr WP-Members Membership Plugin up to 3.5.6. The affected element is an unknown function. The manipulation results in cross site scripting. This vulnerability is reported as CVE-2026-84960. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in cbutlerjr WP-Members Membership Plugin up to 3.5.6. It has been classified as problematic. Affected is an unknown part. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

The WP-Members Membership Plugin plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URL Query String in all versions up to, and including, 3.5.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Successful exploitation requires the victim to first visit the attacker-crafted URL and then click the Terms of Service link rendered on the resulting registration page.

The advisory is available at wordfence.com. This vulnerability is traded as CVE-2026-84960 since 09/02/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• cbutlerjr

Name

• WP-Members Membership Plugin

Version

• 3.5.0
• 3.5.1
• 3.5.2
• 3.5.3
• 3.5.4
• 3.5.5
• 3.5.6

CPE 2.3info

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CPE 2.2info

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