Cross-site scripting in Froxlor - CVE-2026-100720
Published: November 9, 2026 / Updated: November 10, 2026
Vulnerability identifier: #VU162732
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-2026-100720
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a low-privileged authenticated attacker to execute JavaScript in an administrator's browser and take over the administrator's account.
The vulnerability exists due to missing HTML escaping of customer-controlled SSL certificate issuer organizations in Froxlor's certificate listing. A low-privileged authenticated attacker owning a non-email-only domain can upload a certificate containing a malicious issuer that executes when an administrator opens the SSL certificates page.
Affected software
Froxlor
How to mitigate CVE-2026-100720
Install security update from vendor's website.
Froxlor - update to 2.3.12