CVE-2025-34302: IPFire < v2.29 Stored XSS via Service Creation

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-10-28 · updated 2026-10-19
Weakness: CWE-79

Description

IPFire versions prior to 2.29 (Core Update 198) contain a stored cross-site scripting (XSS) vulnerability that allows an authenticated attacker to inject arbitrary JavaScript code through the PROT parameter when creating a new service. When a user adds a service, the application issues an HTTP POST request with the ACTION parameter set to saveservice, and the protocol type is specified in the PROT parameter. The value of this parameter is stored and later rendered in the web interface without proper sanitization or encoding, allowing injected scripts to execute in the context of other users viewing the affected service entry.

Affected products

IPFire.org IPFire: before 2.29; 2.29-core_update183, 2.29-core_update184, 2.29-core_update185, 2.29-core_update186, 2.29-core_update187, 2.29-core_update188 (+9) — fixed in 2.29

How to fix

Upgrade to a fixed version: IPFire.org IPFire 2.29. Check the vendor advisory for mitigations.

References

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