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Vulnerabilities

Vulnerability · 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.p

Published Oct 28, 2025 · catalog updated Oct 29, 2025 · IPFire.org IPFire

Last checked Oct 25, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2025-34305 is not in CISA KEV. FIRST estimates a 49.00% chance of exploitation in the next 30 days. Check whether you run IPFire.org IPFire.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium5.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
49.00%
Remediation
Version ranges on file
Affected products
vendor IPFire.org IPFire 0 <2.29 (Core Update 198)

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 es

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor IPFire.org IPFire 0 <2.29 (Core Update 198)0 <2.29 (Core Update 198)

How to fix CVE-2025-34305

  • Upgrade

    CVE-2025-34305 lists a fix boundary at 2.29. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in 0 <2.29 (Core Update 198)

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-34305 is not in CISA KEV. FIRST estimates a 49.00% chance of exploitation in the next 30 days. Check whether you run IPFire.org IPFire.

Which versions are affected?

Compare what you have installed with IPFire.org IPFire 0 <2.29 (Core Update 198) 0 <2.29 (Core Update 198). Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 49.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 28, 2025 · EUVD

    Detected

    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_RE

  2. Oct 29, 2025 · EUVD

    Updated

    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_RE

Sources

  • CVE.orgVulnerability recordCVE-2025-34305

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-36519

    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 t

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2025. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 25, 2026
  • EUVDOct 25, 2026