What is the CVSS score of CVE-2019-25400?

CVE-2019-25400 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Which versions of Ipfire are affected by CVE-2019-25400?

Organizations using the fwhosts.cgi script that allow attackers to inject malicious scripts should be aware of moderate risk from CVE-2019-25400, a cross-site scripting vulnerability rated CVSS 5.4.

Is there a public PoC exploit available for CVE-2019-25400?

Yes, a public proof-of-concept exploit is available for CVE-2019-25400. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2019-25400?

Within 30 days: Identify affected systems running the fwhosts.cgi script that allow attackers to inject malici and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Ipfire CVE-2019-25400

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-02-18 disclosure@vulncheck.com

XSS Ipfire

5.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.4 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

PoC Detected

Feb 26, 2026 - 15:07 vuln.today

Public exploit code

CVE Published

Feb 18, 2026 - 22:16 nvd

MEDIUM 5.4

DescriptionCVE.org

IPFire 2.21 Core Update 127 contains multiple reflected cross-site scripting vulnerabilities in the fwhosts.cgi script that allow attackers to inject malicious scripts through multiple parameters including HOSTNAME, IP, SUBNET, NETREMARK, HOSTREMARK, newhost, grp_name, remark, SRV_NAME, SRV_PORT, SRVGRP_NAME, SRVGRP_REMARK, and updatesrvgrp. Attackers can submit POST requests with script payloads in these parameters to execute arbitrary JavaScript in the context of authenticated users' browsers.

AnalysisAI

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects the multiple component of Ipfire. IPFire 2.21 Core Update 127 contains multiple reflected cross-site scripting vulnerabilities in the fwhosts.cgi script that allow attackers to inject malicious scripts through multiple parameters including HOSTNAME, IP, SUBNET, NETREMARK, HOSTREMARK, newhost, grp_name, remark, SRV_NAME, SRV_PORT, SRVGRP_NAME, SRVGRP_REMARK, and updatesrvgrp. Attackers can submit POST requests with script payloads in these parameters to execute arbitrary JavaScript in the context of authenticated users' browsers.

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.

CVE-2019-25400 vulnerability details – vuln.today

Back