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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
VulnCheckCNA
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 8%
VendorProductVersion
ipfireipfire
𝑥
< 2.29
ipfireipfire
2.29:core_update183
ipfireipfire
2.29:core_update184
ipfireipfire
2.29:core_update185
ipfireipfire
2.29:core_update186
ipfireipfire
2.29:core_update187
ipfireipfire
2.29:core_update188
ipfireipfire
2.29:core_update189
ipfireipfire
2.29:core_update190
ipfireipfire
2.29:core_update191
ipfireipfire
2.29:core_update192
ipfireipfire
2.29:core_update193
ipfireipfire
2.29:core_update194
ipfireipfire
2.29:core_update195
ipfireipfire
2.29:core_update196
ipfireipfire
2.29:core_update197
𝑥
= Vulnerable software versions