How severe is CVE-2025-0420?

CVE-2025-0420 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-0420 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-0420?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-0420 have an EU (EUVD) identifier?

Yes. CVE-2025-0420 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29707.

When was CVE-2025-0420 published?

CVE-2025-0420 was published on 2025-09-17 and last updated on 2026-06-17.

CVE-2025-0420

CVE-2025-0420 is a medium-severity vulnerability with a CVSS 3.x base score of 4.7. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-29707
Weakness: CWE-79
Published: 2025-09-17
Last modified: 2026-06-17

Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Paraşüt Software Paraşüt allows Cross-Site Scripting (XSS). This issue affects Paraşüt: from 0.0.0.65efa44e through 20250204.

Frequently asked questions

What is CVE-2025-0420?: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Paraşüt Software Paraşüt allows Cross-Site Scripting (XSS). This issue affects Paraşüt: from 0.0.0.65efa44e through 20250204.
How severe is CVE-2025-0420?: CVE-2025-0420 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-0420 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-0420?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-0420 have an EU (EUVD) identifier?: Yes. CVE-2025-0420 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29707.
When was CVE-2025-0420 published?: CVE-2025-0420 was published on 2025-09-17 and last updated on 2026-06-17.

References

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

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CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

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