Advanced Custom Fields Extended Plugin up to 0.9.2.7 on WordPress Shortcode Attributes cross site scripting

Summaryinfo

A vulnerability was found in Advanced Custom Fields Extended Plugin and Advanced Custom Fields Extended PRO Plugin up to 0.9.2.7. It has been declared as problematic. This affects an unknown part of the component Shortcode Attributes. The manipulation results in cross site scripting. This vulnerability is reported as CVE-2026-94264. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Advanced Custom Fields Extended Plugin and Advanced Custom Fields Extended PRO Plugin up to 0.9.2.7. Affected is some unknown processing of the component Shortcode Attributes. 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 Advanced Custom Fields: Extended WordPress plugin before 0.9.2.8, Advanced Custom Fields: Extended PRO WordPress plugin before 0.9.2.8 does not validate or escape some of its form shortcode attributes, which can be pointed at values taken from the visitor's own request and are then output without escaping, allowing users with a role as low as contributor to have arbitrary script run in the browser of anyone led to open a crafted link or page, including a logged-in administrator. This is an incomplete fix for CVE-2023-5292, whose deny-list covers only the three HTML wrapper attributes.

The advisory is shared for download at wpscan.com. This vulnerability is traded as CVE-2026-94264 since 09/21/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 0.9.2.8 eliminates this vulnerability.

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Productinfo

Type

• WordPress Plugin

Name

• Advanced Custom Fields Extended Plugin
• Advanced Custom Fields Extended PRO Plugin

Version

• 0.9.2.0
• 0.9.2.1
• 0.9.2.2
• 0.9.2.3
• 0.9.2.4
• 0.9.2.5
• 0.9.2.6
• 0.9.2.7

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