How to fix or mitigate CVE-2025-0423?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

CVE-2025-0423

Q: What is the CVSS score of CVE-2025-0423?

CVE-2025-0423 has a CVSS 4.0 base score of 5.3 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.5%.

MEDIUM

Improper Input Validation (CWE-20)

2025-02-18 vulnerability@ncsc.ch

XSS

5.3

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

5.3 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:27 vuln.today

CVE Published

Feb 18, 2025 - 08:15 nvd

MEDIUM 5.3

DescriptionCVE.org

In the "bestinformed Web" application, some user input was not properly sanitized. This leads to multiple unauthenticated stored cross-site scripting vulnerabilities. An unauthenticated attacker is able to compromise the sessions of users on the server by injecting JavaScript code into their session using an "Unauthenticated Stored Cross-Site Scripting". The attacker is then able to ride the session of those users and can abuse their privileges on the "bestinformed Web" application.

AnalysisAI

In the "bestinformed Web" application, some user input was not properly sanitized. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-20. In the "bestinformed Web" application, some user input was not properly sanitized. This leads to multiple unauthenticated stored cross-site scripting vulnerabilities. An unauthenticated attacker is able to compromise the sessions of users on the server by injecting JavaScript code into their session using an "Unauthenticated Stored Cross-Site Scripting". The attacker is then able to ride the session of those users and can abuse their privileges on the "bestinformed Web" application.

Affected ProductsAI

See vendor advisory for affected versions.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.