---
title: "CVE-2026-100717: Froxlor - Server-Side Request Forgery"
description: "Froxlor <= 2.3.10 contains a server-side request forgery caused by improper validation of CR/LF characters in userinfo of URLs, letting authenticated low-privilege customers with subdomain-create rights inject arbitrary web-server configuration, exploit requires authenticated low-privilege user."
url: https://panop.io/threat-heartbeat/CVE-2026-100717/
---

# CVE-2026-100717 Froxlor - Server-Side Request Forgery

Froxlor <= 2.3.10 contains a server-side request forgery caused by improper validation of CR/LF characters in userinfo of URLs, letting authenticated low-privilege customers with subdomain-create rights inject arbitrary web-server configuration, exploit requires authenticated low-privilege user.

CVSS base score 9.9 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.30% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-100717)

## Details

Type

Server-Side Request Forgery

Impact

Data Tampering, Information Disclosure

CVSS vector

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

Published

26 September 2026

Updated

15 October 2026

Weakness

[CWE-93](https://cwe.mitre.org/data/definitions/93.html)

## Vendor fix

Upgrade to version 2.3.12.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-100717](https://nvd.nist.gov/vuln/detail/CVE-2026-100717)
- [https://www.vulncheck.com/advisories/froxlor-before-2.3.12-crlf-injection-via-validateurl-userinfo](https://www.vulncheck.com/advisories/froxlor-before-2.3.12-crlf-injection-via-validateurl-userinfo)
- [https://github.com/froxlor/froxlor/security/advisories/GHSA-gxx3-hwjc-h2gp](https://github.com/froxlor/froxlor/security/advisories/GHSA-gxx3-hwjc-h2gp)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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