How to fix CVE-2025-50976?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Is Ipfire affected by CVE-2025-50976?

CVE-2025-50976 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Proof-of-concept code is publicly available.

CVE-2025-50976

MEDIUM

2025-08-26 [email protected]

6.1

CVSS 3.1

CVSS Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:08 vuln.today

PoC Detected

Sep 09, 2025 - 18:55 vuln.today

Public exploit code

CVE Published

Aug 26, 2025 - 18:15 nvd

MEDIUM 6.1

Description

Analysis

IPFire 2.29 DNS management interface (dns.cgi) fails to properly sanitize user-supplied input in the NAMESERVER, REMARK, and TLS_HOSTNAME query parameters, resulting in a reflected cross-site. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical Context

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. IPFire 2.29 DNS management interface (dns.cgi) fails to properly sanitize user-supplied input in the NAMESERVER, REMARK, and TLS_HOSTNAME query parameters, resulting in a reflected cross-site scripting (XSS) vulnerability. Affected products include: Ipfire.

Affected Products

Ipfire.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.0

CVSS: +30

POC: +20

CVE-2025-50976 vulnerability details – vuln.today

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CVE-2025-50976

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CVE-2025-50976

CVSS Vector

Lifecycle Timeline

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Description

Analysis

Technical Context

Affected Products

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