CVE-2025-34305

IPFire versions prior to 2.29 (Core Update 198) contain multiple stored cross-site scripting (XSS) vulnerabilities caused by a bug in the cleanhtml() function (/var/ipfire/header.pl) that fails to apply HTML-entity encoding to user input. When an authenticated user submits data to affected endpoints - for example, POST /cgi-bin/wakeonlan.cgi (CLIENT_COMMENT), /cgi-bin/dhcp.cgi (ADVOPT_DATA, FIX_REMARK, FIX_FILENAME, FIX_ROOTPATH), /cgi-bin/connscheduler.cgi (ACTION_COMMENT), /cgi-bin/dnsforward.cgi (REMARK), /cgi-bin/vpnmain.cgi (REMARK), or /cgi-bin/dns.cgi (REMARK) - the application calls escape() and HTML::Entities::encode_entities() but never assigns the sanitized result back to the output variable. The original unsanitized value is therefore 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 entries.

• CWE-79

• https://bugzilla.ipfire.org/show_bug.cgi?id=13880Issue Tracking, Third Party Advisory
• https://www.ipfire.org/blog/ipfire-2-29-core-update-198-releasedRelease Notes
• https://www.vulncheck.com/advisories/ipfire-stored-xss-via-multiple-methods-in-cleanhtmlThird Party Advisory

Published

Oct 28, 2025

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2025-3430The 3DPrint Lite plugin for WordPress is vulnerable to SQL I…4.9
• CVE-2025-34300A template injection vulnerability exists in Sawtooth Softwa…10
• CVE-2025-34301IPFire versions prior to 2.29 (Core Update 198) contain a st…5.4
• CVE-2025-34302IPFire versions prior to 2.29 (Core Update 198) contain a st…5.4
• CVE-2025-34303IPFire versions prior to 2.29 (Core Update 198) contain a st…5.4
• CVE-2025-34304IPFire versions prior to 2.29 (Core Update 198) contain a SQ…6.5
• CVE-2025-34306IPFire versions prior to 2.29 (Core Update 198) contain a st…5.4
• CVE-2025-34307IPFire versions prior to 2.29 (Core Update 198) contain a st…5.4
• CVE-2025-34308IPFire versions prior to 2.29 (Core Update 198) contain a st…5.4
• CVE-2025-34309IPFire versions prior to 2.29 (Core Update 198) contain a st…5.4
• CVE-2025-3431The ZoomSounds - WordPress Wave Audio Player with Playlist p…7.5
• CVE-2025-34310IPFire versions prior to 2.29 (Core Update 198) contain a st…5.4