CVE-2026-54348
Received Received - Intake

Improper Input Validation in Froxlor Leading to SQL Injection

Publication date: 2026-08-18

Last updated on: 2026-08-19

Assigner: GitHub, Inc.

Description
Froxlor is open source server administration software. Prior to 2.3.8, the Admins.add and Admins.update endpoints in lib/Froxlor/Api/Commands/Admins.php accept an attacker-controlled ipaddress array and store it as JSON in panel_admins.ip without enforcing numeric element types. When the poisoned account later calls IpsAndPorts.listing, lib/Froxlor/Api/Commands/IpsAndPorts.php decodes the array and concatenates its elements into a SQL IN clause without casting or parameterization; the same unsafe pattern is present in lib/Froxlor/Api/Commands/Domains.php. An authenticated administrator with change_serversettings permission can store a UNION-based payload and trigger it through the poisoned account to retrieve arbitrary database data, including administrator login names and bcrypt password hashes, with potential privilege escalation and broader database impact. This issue is fixed in version 2.3.8.

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Meta Information

Published
2026-08-18
Last Modified
2026-08-19
Generated
2026-09-08
AI Q&A
2026-08-19
EPSS Evaluated
2026-09-07
NVD
CVE-2026-54348
EUVD
EUVD-2026-61218

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
froxlor froxlor 2.3.8

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

Attack-Flow Graph

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Executive Summary

Froxlor before 2.3.8 has an API vulnerability where authenticated admins can inject malicious data into database fields. The Admins.add and Admins.update endpoints accept an ipaddress array that is stored as JSON without validating numeric types. Later, when IpsAndPorts.listing or Domains.php processes this data, it creates unsafe SQL queries by concatenating array elements directly into SQL IN clauses without proper casting or parameterization.

Detection Guidance

Check Froxlor version with 'froxlor --version' or via the web interface. Inspect API endpoints for Admins.add, Admins.update, IpsAndPorts.listing, and Domains.php for suspicious JSON storage or SQL concatenation patterns. Review database entries in panel_admins.ip for non-numeric ipaddress arrays.

Impact Analysis

An attacker with admin privileges could exploit this to retrieve sensitive database data like admin credentials and bcrypt password hashes. This could lead to full system compromise, privilege escalation, and unauthorized access to other accounts or data stored in the database.

Compliance Impact

This vulnerability could lead to unauthorized access to personal data, violating GDPR and HIPAA requirements for data protection and access controls. Organizations using vulnerable Froxlor versions may face compliance violations, data breaches, and potential regulatory penalties.

Mitigation Strategies

Upgrade Froxlor to version 2.3.8 or later immediately. Revoke unnecessary administrator permissions, especially change_serversettings. Audit database for unauthorized access or data exfiltration. Monitor API logs for unusual activity involving Admins or IpsAndPorts endpoints.

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