What is the CVSS score of CVE-2019-25399?

CVE-2019-25399 has a CVSS 3.1 base score of 6.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of Ipfire are affected by CVE-2019-25399?

Organizations using the extrahd.cgi script that allow attackers to inject malicious scripts should be aware of moderate risk from CVE-2019-25399, a cross-site scripting vulnerability rated CVSS 6.4.

Is there a public PoC exploit available for CVE-2019-25399?

Yes, a public proof-of-concept exploit is available for CVE-2019-25399. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2019-25399?

Within 30 days: Identify affected systems running the extrahd.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-2019-25399

MEDIUM

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

2026-02-18 disclosure@vulncheck.com

XSS Ipfire

6.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.4 MEDIUM

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

PoC Detected

Feb 26, 2026 - 15:06 vuln.today

Public exploit code

CVE Published

Feb 18, 2026 - 22:16 nvd

MEDIUM 6.4

DescriptionCVE.org

IPFire 2.21 Core Update 127 contains multiple stored cross-site scripting vulnerabilities in the extrahd.cgi script that allow attackers to inject malicious scripts through the FS, PATH, and UUID parameters. Attackers can submit POST requests with script payloads in these parameters to execute arbitrary JavaScript in the context of authenticated administrator sessions.

AnalysisAI

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects the these component of Ipfire. IPFire 2.21 Core Update 127 contains multiple stored cross-site scripting vulnerabilities in the extrahd.cgi script that allow attackers to inject malicious scripts through the FS, PATH, and UUID parameters. Attackers can submit POST requests with script payloads in these parameters to execute arbitrary JavaScript in the context of authenticated administrator sessions.

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-2019-25399 vulnerability details – vuln.today

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