CVE-2026-100717 (GCVE-0-2026-100717)

Vulnerability from cvelistv5 – Published: 2026-09-26 13:24 – Updated: 2026-09-30 17:07
VLAI
Title
froxlor before 2.3.12 CRLF Injection via validateUrl userinfo
Summary
froxlor is a server administration panel. In versions 2.3.10 and earlier, Validate::validateUrl rejects carriage return and line feed characters only in the path, query and fragment components returned by parse_url, and never inspects the userinfo (user:pass@) components. This is an incomplete fix for GHSA-c3p2. An authenticated low-privilege customer with subdomain-create rights (no admin or change_serversettings privilege required) can supply a subdomain redirect URL that carries a CR/LF payload in the userinfo portion (e.g. http://user%0areturn 200 "pwned";%0a@evil.com/). The value passes validation, survives IDNA encoding, and is written verbatim into the generated nginx or Apache vhost configuration, allowing the attacker to break out of the emitted directive and inject arbitrary web-server configuration lines. froxlor regenerates and reloads the web-server configuration as root, so the injected directives take effect server-wide and can hijack responses or read local files. The issue is fixed in version 2.3.12.
Severity
8.5 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 17:07 UTC
CWE
  • CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7796 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
froxlor froxlor Affected: 0 , < 2.3.12 (semver)
Unaffected: 2.3.12 (semver)
    cpe:2.3:a:froxlor:froxlor:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-06 00:00
Credits
arpitjain099
Show details on NVD website
To clipboard 

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