Cross-site scripting in SuiteCRM - CVE-2026-29100
Published: April 24, 2026
Vulnerability identifier: #VU127405
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green
CVE-ID: CVE-2026-29100
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: SalesAgility
Affected software:
SuiteCRM
SuiteCRM
Detailed vulnerability description
The vulnerability allows a remote attacker to inject arbitrary HTML content.
The vulnerability exists due to improper neutralization of input during web page generation in the login page when processing the default_user_name parameter. A remote attacker can supply a crafted parameter value to inject arbitrary HTML content.
User interaction is required to load the crafted login page, which may enable phishing attacks or page defacement.
How to mitigate CVE-2026-29100
Install security update from vendor's website.