XSS in Ipfire
CVE-2025-34317
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 TLS_HOSTNAME parameter when adding a new DNS entry. When a user adds a DNS entry, the application issues an HTTP POST request to /cgi-bin/dns.cgi and the TLS hostname is provided in the TLS_HOSTNAME parameter. The value of this parameter is stored and later rendered in the web interface without proper sanitation or encoding, allowing injected scripts to execute in the context of other users who view the affected DNS configuration.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.005 (37.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Ipfire — versions 2.29
- Ipfire.org Ipfire — versions 0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory, Release Notes, patch)
- disclosure@vulncheck.com (issue-tracking, Third Party Advisory, Issue Tracking)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2025-34317?
- CVE-2025-34317 is a medium-severity vulnerability in Ipfire, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-10-28.
- How severe is CVE-2025-34317?
- Medium severity. CVSS v3 base score is 5.4 out of 10.