CVE-2025-34318
CVE-2025-34318 is a medium-severity vulnerability with a CVSS 4.0 base score of 5.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 4.0 base score 5.1)
- EPSS exploit prediction: 0% (38th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-36514
- Weakness: CWE-79
- Published:
- Last modified:
Description
IPFire versions prior to 2.29 (Core Update 198) contain a stored cross-site scripting (XSS) vulnerability that allows an authenticated attacker to inject arbitrary JavaScript code through the TLS_HOSTNAME, UPSTREAM_USER, UPSTREAM_PASSWORD, ADMIN_MAIL_ADDRESS, and ADMIN_PASSWORD parameters when adding a new DNS entry. When a user adds a DNS entry, the application issues an HTTP POST request to /cgi-bin/dns.cgi and these values are provided in the corresponding parameters. The values are 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 DNS configuration.
Frequently asked questions
- What is CVE-2025-34318?
- IPFire versions prior to 2.29 (Core Update 198) contain a stored cross-site scripting (XSS) vulnerability that allows an authenticated attacker to inject arbitrary JavaScript code through the TLS_HOSTNAME, UPSTREAM_USER, UPSTREAM_PASSWORD, ADMIN_MAIL_ADDRESS, and ADMIN_PASSWORD parameters when adding a new DNS entry. When a user adds a DNS entry, the application issues an HTTP POST request to /cgi-bin/dns.cgi and these values are provided in the corresponding parameters. The values are 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 DNS configuration.
- How severe is CVE-2025-34318?
- CVE-2025-34318 has a CVSS 4.0 base score of 5.1, rated medium severity.
- Is CVE-2025-34318 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-34318?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-34318 have an EU (EUVD) identifier?
- Yes. CVE-2025-34318 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-36514.
- When was CVE-2025-34318 published?
- CVE-2025-34318 was published on 2025-10-28 and last updated on 2026-06-17.
References
- https://bugzilla.ipfire.org/show_bug.cgi?id=13893
- https://www.ipfire.org/blog/ipfire-2-29-core-update-198-released
- https://www.vulncheck.com/advisories/ipfire-stored-xss-via-dns-creation-proxy-cgi
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