TI-2026-40130 Aliases CVE-2026-55593 GHSA-xpr4-8vp6-c87j

Froxlor: CSRF Vulnerability in Froxlor AJAX Endpoint — Missing Cross-Site Request Forgery Protection

LOW 28CWE-352Published 2026-08-18 · Updated 2026-08-19

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Tampering
Confidentiality · integrity · availability: None · High · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-352.

Summary

Froxlor is open source server administration software. Prior to 2.3.8, the standalone lib/ajax.php entry point bypasses the centralized request validation in lib/init.php, and Ajax::handle in lib/Froxlor/Ajax/Ajax.php checks only for a valid session before routing state-changing requests. The editapikey action in Ajax::editApiKey updates allowed_from and valid_until without validating a CSRF token, while templates/Froxlor/assets/js/jquery/apikeys.js sends no token because the endpoint does not require one. An unauthenticated attacker can induce an authenticated administrator's browser to submit a forged request that adds an attacker-controlled address to an API key's allowed_from list or removes its expiration, weakening the key's security restrictions. This issue is fixed in version 2.3.8.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00256 17th percentileScored 2026-11-07

Fix Fixed froxlor (froxlor): 2.3.8froxlor/froxlor (Packagist): 2.3.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
froxlor	froxlor	before 2.3.8	2.3.8	Patch available	CNA
—	froxlor/froxlor (Packagist)	before 2.3.8	2.3.8	Patch available	GHSA-xpr4-8vp6-c87j

froxlor Vendorfroxlor Affected before 2.3.8 Fixed in 2.3.8 Patch available CNA
froxlor/froxlor (Packagist) Vendor— Affected before 2.3.8 Fixed in 2.3.8 Patch available GHSA-xpr4-8vp6-c87j

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:froxlor:froxlor::::::::	—	—	froxlor

cpe:2.3:a:froxlor:froxlor:*:*:*:*:*:*:*:* Versions — — ·froxlor

Remediation

Fix · CNA froxlor (froxlor) Fixed in 2.3.8
Fix · GHSA-xpr4-8vp6-c87j froxlor/froxlor (Packagist) Fixed in 2.3.8 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-55593
2026-10-03 Alias added: GHSA-xpr4-8vp6-c87j

References

Other 4

TI-2023-00300 Command Injection in froxlor/froxlor CVSS 3.1HIGH 8.8
TI-2023-02973 Improper Restriction of Excessive Authentication Attempts in froxlor/froxlor CVSS 3.1CRITICAL 9.8
TI-2023-01234 Authentication Bypass by Primary Weakness in froxlor/froxlor CVSS 3.1CRITICAL 9.8
TI-2023-01911 Unrestricted Upload of File with Dangerous Type in froxlor/froxlor CVSS 3.1HIGH 8.8
TI-2026-64867 froxlor before 2.3.12 Authentication Bypass via Session Persistence CVSS 4.0HIGH 8.7
TI-2026-76945 Symlink following in Froxlor enables root privilege escalation CVSS 4.0CRITICAL 9.4

See all 86 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences