Cross-site scripting in Roxy-WI - #VU165893
Published: November 11, 2026
Vulnerability identifier: #VU165893
CSH Severity: Medium
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: N/A
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute JavaScript in a group administrator's browser, read same-origin information, and perform actions with the victim's privileges.
The vulnerability exists due to improper output encoding in Roxy-WI's certificate-list renderer when inserting persistent filenames into HTML using jQuery .html(). A remote user can use a role-4 guest account to upload a certificate named <img src=x onerror=alert(830093)> through POST /add/cert/add despite read-only restrictions, triggering script execution when an administrator in the same group selects the server and views its uploaded certificates.
Affected software
Roxy-WI
Remediation
Install security update from vendor's website.
Roxy-WI - update to 9.0.0