Cross-site scripting in MOVEit Transfer - CVE-2026-11903
Published: July 8, 2026
Vulnerability identifier: #VU137153
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-11903
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary JavaScript in the recipient's browser.
The vulnerability exists due to cross-site scripting in the Ad Hoc module when processing crafted messages. A remote user can send a crafted message to execute arbitrary JavaScript in the recipient's browser.
Affected software
MOVEit Transfer
How to mitigate CVE-2026-11903
Install security update from vendor's website.
MOVEit Transfer - addressed in versions 2025.0.8, 2025.1.4, 2026.0.1