CVE-2026-29106

SuiteCRM has blind XSS in return_id parameter

State: Published
Severity: 5.9 Medium
Published: Mar 19, 2026
Updated: Mar 20, 2026
Reserved: Mar 3, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	5.9 Medium	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L	GitHub_M

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CWE-116 Improper Encoding or Escaping of Output
CWE-159 Improper Handling of Invalid Use of Special Elements

Affected Products

Product	Versions
SuiteCRMSuiteCRM	< 7.15.1Affected >= 8.0.0, < 8.9.3Affected

References

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