VULNERABILITY INTELLIGENCE
CVE-2026-90937
CVSS score9.9 CRITICAL
EPSS probability0.45%
CISA KEVNot currently listed
Published2026-09-14
Last modified2026-09-23
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
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.
Weakness classification
- disclosure@vulncheck.com: CWE-93