CVE-2025-34305

MEDIUM EPSS 36.1%
Published Oct 28, 20258mo ago · Modified Jun 17, 20262w ago
5.1 CVSS 4.0
Medium
Find Similar
Published Oct 28, 2025 8mo ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
5.1
Exploitability
—
Impact
—
Vector string
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
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
36.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 16

VendorProductVersionRange
ipfireipfire* <2.29
ipfireipfire2.29any
ipfireipfire2.29any
ipfireipfire2.29any
ipfireipfire2.29any
ipfireipfire2.29any
ipfireipfire2.29any
ipfireipfire2.29any
ipfireipfire2.29any
ipfireipfire2.29any
ipfireipfire2.29any
ipfireipfire2.29any
ipfireipfire2.29any
ipfireipfire2.29any
ipfireipfire2.29any
ipfireipfire2.29any

References 3

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.