CVE-2024-34070: Froxlor Vulnerable to Blind XSS Leading to Froxlor Application Compromise

Severity: critical (CVSS 9.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-14 · updated 2026-06-17
Weakness: CWE-79

Description

Froxlor is open source server administration software. Prior to 2.1.9, a Stored Blind Cross-Site Scripting (XSS) vulnerability was identified in the Failed Login Attempts Logging Feature of the Froxlor Application. An unauthenticated User can inject malicious scripts in the loginname parameter on the Login attempt, which will then be executed when viewed by the Administrator in the System Logs. By exploiting this vulnerability, the attacker can perform various malicious actions such as forcing the Administrator to execute actions without their knowledge or consent. For instance, the attacker can force the Administrator to add a new administrator controlled by the attacker, thereby giving the attacker full control over the application. This vulnerability is fixed in 2.1.9.

Affected products

froxlor: from 2.1.9* before 2.1.9 — fixed in 2.1.9

How to fix

Upgrade to a fixed version: froxlor 2.1.9. Check the vendor advisory for mitigations.

References

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