IPFire < v2.29 Stored XSS via Multiple Methods in cleanhtml()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-34305
StatePUBLISHED
AssignerVulnCheck
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-10-28 15:16:10 UTC
Updated2026-10-19 13:10:00 UTC
DescriptionIPFire 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.

Risk And Classification

Primary CVSS: v4.0 5.1 MEDIUM from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary5.1MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/C...
4.0CNACVSS5.1MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
3.1[email protected]Primary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
Passive
Confidentiality
None
Integrity
None
Availability
None
Sub Conf.
Low
Sub Integrity
Low
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Ipfire Ipfire All All All All
Application Ipfire Ipfire 2.29 core_update183 All All
Application Ipfire Ipfire 2.29 core_update184 All All
Application Ipfire Ipfire 2.29 core_update185 All All
Application Ipfire Ipfire 2.29 core_update186 All All
Application Ipfire Ipfire 2.29 core_update187 All All
Application Ipfire Ipfire 2.29 core_update188 All All
Application Ipfire Ipfire 2.29 core_update189 All All
Application Ipfire Ipfire 2.29 core_update190 All All
Application Ipfire Ipfire 2.29 core_update191 All All
Application Ipfire Ipfire 2.29 core_update192 All All
Application Ipfire Ipfire 2.29 core_update193 All All
Application Ipfire Ipfire 2.29 core_update194 All All
Application Ipfire Ipfire 2.29 core_update195 All All
Application Ipfire Ipfire 2.29 core_update196 All All
Application Ipfire Ipfire 2.29 core_update197 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA IPFire.org IPFire affected 2.29 (Core Update 198) custom Not specified

References

ReferenceSourceLinkTags
bugzilla.ipfire.org/show_bug.cgi [email protected] bugzilla.ipfire.org Issue Tracking, Third Party Advisory
www.vulncheck.com/advisories/ipfire-stored-xss-via-multiple-methods-in-cleanhtml [email protected] www.vulncheck.com Third Party Advisory
www.ipfire.org/blog/ipfire-2-29-core-update-198-released [email protected] www.ipfire.org Release Notes
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Alex Williams from Pellera Technologies (en)

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