CVE Catalog

CVE-2025-34305

MediumCVSS 5.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.49%

40th percentile - higher than 40% of all known CVEs

Summary

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. An authenticated user can submit data to affected endpoints (e.g., wakeonlan.cgi, dhcp.cgi, connscheduler.cgi, dnsforward.cgi, vpnmain.cgi, dns.cgi), and 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.

Risk Assessment

The injected scripts may execute in the context of other users viewing the affected entries, potentially leading to session theft or unauthorized actions on behalf of the victim.

Recommendation

Update IPFire to version 2.29 (Core Update 198) or later. Until patched, restrict access to the administrative interface and validate input data.

Other vulnerabilities in IPFire

See all
Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS