CVE-2026-90937

CriticalCVSS 9.9/10Last modified Sep 23, 2026

Description

froxlor versions before 2.2.5 fail to validate newline characters in subdomain redirect URLs, allowing authenticated customers to inject arbitrary nginx or Apache configuration directives. Attackers can supply URLs containing literal newlines that are written verbatim into vhost config files during cron rebuild, enabling web server configuration corruption, denial of service, or hijacking of HTTP responses across hosted domains.

Metrics

CVSS 3.1 9.9/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Weakness enumeration

CWE-93

Affected software

No affected versions have been published.

Timeline

Published
Sep 14, 2026
Last modified
Sep 23, 2026
NVD status
Deferred

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