SuiteCRM up to 7.15.0/8.9.2 Content Security Policy return_id cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, was found in SuiteCRM up to 7.15.0/8.9.2. This impacts an unknown function of the component Content Security Policy Handler. Executing a manipulation of the argument return_id can lead to cross site scripting. This vulnerability is handled as CVE-2026-29106. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in SuiteCRM up to 7.15.0/8.9.2 and classified as problematic. This vulnerability affects some unknown functionality of the component Content Security Policy Handler. The manipulation of the argument return_id with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. CVE summarizes:

SuiteCRM is an open-source, enterprise-ready Customer Relationship Management (CRM) software application. Prior to versions 7.15.1 and 8.9.3, the value of the return_id request parameter is copied into the value of an HTML tag attribute which is an event handler and is encapsulated in double quotation marks. Versions 7.15.1 and 8.9.3 patch the issue. Users should also use a Content Security Policy (CSP) header to completely mitigate XSS.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-29106 since 03/03/2026. The exploitation appears to be easy. The attack can be initiated remotely. The exploitation needs additional levels of successful authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 7.15.1 or 8.9.3 eliminates this vulnerability. The upgrade is hosted for download at docs.suitecrm.com.

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Productinfo

Name

• SuiteCRM

Version

• 7.0
• 7.1
• 7.2
• 7.3
• 7.4
• 7.5
• 7.6
• 7.7
• 7.8
• 7.9
• 7.10
• 7.11
• 7.12
• 7.13
• 7.14
• 7.15.0
• 8.9.0
• 8.9.1
• 8.9.2

License

• open-source

Website

• Product: https://github.com/SuiteCRM/SuiteCRM/

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