CVE-2026-29106CWE-116CWE-159CWE-79CWE-80

SuiteCRM has blind XSS in return_id parameter

Medium · published March 19, 2026

CVSS v3.1
5.9
EPSS
0%
Percentile
4.4
In the wild
Unconfirmed
What it is

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 record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00149 · 4.4th percentile
Weaknesses
CWE-116 · Improper Encoding or Escaping of Output; CWE-159 · Improper Handling of Invalid Use of Special Elements; 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)
Published
2026-03-19T23:02Z
EPSS history
Timeline
  • 19 MAR 23:02Z
    SuiteCRM has blind XSS in return_id parameter
    cvelistv5