CVE-2025-0423
CVE-2025-0423 is a medium-severity vulnerability with a CVSS 4.0 base score of 5.3. 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-20.
Key facts
- Severity: Medium (CVSS 4.0 base score 5.3)
- EPSS exploit prediction: 0% (37th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-4810
- Weakness: CWE-20
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2025-0423?
- 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.
- How severe is CVE-2025-0423?
- CVE-2025-0423 has a CVSS 4.0 base score of 5.3, rated medium severity.
- Is CVE-2025-0423 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-0423?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-0423 have an EU (EUVD) identifier?
- Yes. CVE-2025-0423 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4810.
- When was CVE-2025-0423 published?
- CVE-2025-0423 was published on 2025-02-18 and last updated on 2026-06-17.
References
Other CWE-20 (Improper Input Validation) vulnerabilities
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