Skip to main content

Froxlor CVE-2026-100719

| EUVDEUVD-2026-87692 HIGH
Information Exposure (CWE-200)
2026-09-26 VulnCheck GHSA-fp5c-8qgm-3w4v
7.1
CVSS 4.0 · Vendor: VulnCheck
View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain low-privilege Froxlor API credentials
  2. Delivery
    Call DirProtections.listing API command
  3. Exploit
    Receive bcrypt htpasswd hashes
  4. Execution
    Crack hashes offline
  5. Impact
    Reuse recovered credentials for lateral access

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK

2 techniques across 2 tactics: Collection, Discovery

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Requires an authenticated Froxlor API session (PR:L) with access to invoke the DirProtections.listing API command; exploitation is network-reachable and needs no user interaction. It applies to Froxlor installations before 2.3.12 that use the directory-protection (htpasswd) feature - if no protected directories are configured, there are no hashes to disclose. Impact is confidentiality-only and further limited by bcrypt's cost: disclosed hashes still require offline cracking, so realized harm depends on weak or reused passwords rather than immediate plaintext exposure.

Impact

Signals are consistent and point to a real but moderate-severity issue rather than an urgent priority. The vendor CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N) scores 7.1 (High), driven entirely by high confidentiality impact with no integrity or availability effect - accurate for a credential-disclosure flaw. The PR:L requirement means an attacker must already hold valid authenticated API access, which is a meaningful gatekeeper and downgrades real-world urgency. No EPSS score, no CISA KEV listing, and no public POC are present in the data, indicating no evidence of active or automated exploitation; exploitation status is therefore 'no public exploit identified at time of analysis.' The disclosed material is bcrypt hashes, which are computationally expensive to crack, so impact is delayed and probabilistic (dependent on password strength and reuse) rather than immediate. Net: a legitimate confidentiality bug worth patching, but not a drop-everything emergency - the PR:L barrier, bcrypt cost factor, and absence of exploitation signals all temper the 7.1 rating.

Exploit ScenarioDerived

An attacker holding valid but low-privilege Froxlor API credentials (or a compromised low-tier reseller/customer API token) invokes the DirProtections.listing API command and receives bcrypt htpasswd hashes for protected-directory users. The attacker cracks weak hashes offline and reuses recovered passwords against the same or other services where the directory users reused credentials. No public exploit code is identified at time of analysis.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.2% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Sep 26, 2026

Authenticated API users in Froxlor before 2.3.12 can retrieve bcrypt password hashes for htpasswd-protected directories via the DirProtections.listing API command, enabling offline cracking and potential exposure of reused credentials. This credential disclosure affects installations that have configured protected directories; if none exist, no hashes are exposed. No public exploit identified at time of analysis, and the impact is confidentiality-only, limited by bcrypt's cost.

RemediationAI

Vendor-released patch: upgrade to Froxlor 2.3.12 or later. Apply the fix from the official advisory (https://github.com/froxlor/froxlor/security/advisories/GHSA-8wfc-9qp5-gjxf). If immediate patching is not possible, restrict access to the DirProtections.listing API command to only fully trusted administrative users, and review API permissions to ensure least privilege. Additionally, ensure that all htpasswd-protected directories use strong, unique passwords to reduce the effectiveness of offline cracking; since bcrypt hashes are slow to crack, this is a compensating control but not a substitute for patching. Disabling the directory protection feature entirely would eliminate the exposure but may not be operationally feasible; if disabled, protected directories lose their authentication.

Affected VersionsENISA

Froxlor 0 <2.3.12

Affected Packages

euvd froxlor fix: 2.3.12

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Froxlor is a web hosting control panel that includes a directory protection feature allowing administrators to restrict access to web directories using htpasswd files. The vulnerability resides in the DirProtections.listing API command, which fails to redact password hashes from its response, exposing bcrypt hashes to any authenticated API user with permission to invoke that command. This is a CWE-200 information exposure issue: sensitive credential material is returned to a user who should not have access to it. The affected component is present in all Froxlor versions prior to 2.3.12, as indicated by the CPE cpe:2.3:a:froxlor:froxlor:*:*:*:*:*:*:*:* and EUVD's affected range 'Froxlor 0 <2.3.12'. The bcrypt algorithm used for htpasswd hashes includes a per-password salt and variable cost factor, which slows offline cracking but does not prevent it, especially for weak passwords.

Know when Froxlor gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

Vendor (VulnCheck) PRIMARY 7.1 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
vuln.today AI 6.5 MEDIUM

Network-reachable API with low complexity, but requires authenticated API access (PR:L); high confidentiality from hash disclosure, no integrity or availability impact and no scope change.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
None
Vulnerable system: Availability
None
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

2
Patch available
Sep 26, 2026 - 14:02 EUVD
CVE Published
Sep 26, 2026 - 13:24 cve.org
HIGH 7.1

DescriptionCVE.org

Froxlor versions before 2.3.12 contain a credential disclosure vulnerability in the DirProtections.listing API command that returns htpasswd password hashes. Authenticated API users can retrieve bcrypt password hashes for protected-directory users, enabling offline cracking attempts and exposure of reused credentials.

Technical POC Analysis

Source: GitHub Security Advisory GHSA-8wfc-9qp5-gjxf (moderate, CVSS 3.1 6.5) plus the CVE record.

Full technical POC analysis - root cause, step-by-step exploitation and patch breakdown - is part of the Pro and Business plans.

Executive ViewAI

Why It Matters

A credential-disclosure flaw in the Froxlor server management panel causes its API to return bcrypt password hashes for htpasswd-protected directories, giving an attacker material that can be cracked offline and used against accounts whose passwords are reused elsewhere. Exposure is limited to installations that have configured protected directories, and no public exploit has been identified at time of analysis, but because these are credential secrets tied to administrative infrastructure, the consequences of recovery extend beyond the panel itself. Leadership should treat this as a contained but credential-sensitive issue requiring prompt upgrade of Froxlor deployments.

Business Impact: Medium
Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score
0.2%
Top 87% exploitable
Prevalence
Low
niche open-source web-hosting control panel, small-hoster/self-hosted footprint
Social Media
1
Sightings
Data Quality
5 sources
Confidence: Medium
EUVD NVD CVE.org EPSS Vulnrichment CIRCL GitHub VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
Medium
Technical Impact
Partial

Priority Score

36
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

CVE-2023-0315 HIGH POC
8.8 Jan 16

Command Injection in GitHub repository froxlor/froxlor prior to 2.0.8. Rated high severity (CVSS 8.8), this vulnerabilit

CVE-2023-3173 CRITICAL POC
9.8 Jun 09

Improper Restriction of Excessive Authentication Attempts in GitHub repository froxlor/froxlor prior to 2.0.20. Rated cr

CVE-2023-1307 CRITICAL POC
9.8 Mar 10

Authentication Bypass by Primary Weakness in GitHub repository froxlor/froxlor prior to 2.0.13. Rated critical severity

CVE-2021-42325 CRITICAL POC
9.8 Oct 12

Froxlor through 0.10.29.1 allows SQL injection in Database/Manager/DbManagerMySQL.php via a custom DB name. Rated critic

CVE-2026-26279 CRITICAL POC
9.1 Mar 03

Command injection in Froxlor server admin before 2.3.4 due to typo (== instead of =) disabling input validation entirely

CVE-2023-6069 HIGH POC
8.8 Nov 10

Improper Link Resolution Before File Access in GitHub repository froxlor/froxlor prior to 2.1.0. Rated high severity (CV

CVE-2023-2034 HIGH POC
8.8 Apr 14

Unrestricted Upload of File with Dangerous Type in GitHub repository froxlor/froxlor prior to 2.0.14. Rated high severit

CVE-2023-1033 HIGH POC
8.8 Feb 25

Cross-Site Request Forgery (CSRF) in GitHub repository froxlor/froxlor prior to 2.0.11. Rated high severity (CVSS 8.8),

CVE-2023-0877 HIGH POC
8.8 Feb 17

Code Injection in GitHub repository froxlor/froxlor prior to 2.0.11. Rated high severity (CVSS 8.8), this vulnerability

CVE-2023-0671 HIGH POC
8.8 Feb 04

Code Injection in GitHub repository froxlor/froxlor prior to 2.0.10. Rated high severity (CVSS 8.8), this vulnerability

CVE-2020-10235 HIGH POC
8.8 Mar 09

An issue was discovered in Froxlor before 0.10.14. Rated high severity (CVSS 8.8), this vulnerability is remotely exploi

CVE-2023-50256 HIGH POC
7.5 Jan 03

Froxlor is open source server administration software. Rated high severity (CVSS 7.5), this vulnerability is remotely ex

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy