How severe is CVE-2025-63830?

CVE-2025-63830 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-63830 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-63830?

CVE-2025-63830 affects Cksource Ckfinder. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-63830?

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

Does CVE-2025-63830 have an EU (EUVD) identifier?

Yes. CVE-2025-63830 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-197625.

When was CVE-2025-63830 published?

CVE-2025-63830 was published on 2025-11-14 and last updated on 2026-06-17.

CVE-2025-63830

CVE-2025-63830 is a medium-severity vulnerability in Cksource Ckfinder with a CVSS 3.x base score of 6.1. 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 6.1)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-197625
Weakness: CWE-79
Affected product: Cksource Ckfinder
Published: 2025-11-14
Last modified: 2026-06-17

Description

CKFinder 1.4.3 is vulnerable to Cross Site Scripting (XSS) in the File Upload function. An attacker can upload a crafted SVG containing active content.

Frequently asked questions

What is CVE-2025-63830?: CKFinder 1.4.3 is vulnerable to Cross Site Scripting (XSS) in the File Upload function. An attacker can upload a crafted SVG containing active content.
How severe is CVE-2025-63830?: CVE-2025-63830 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-63830 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-63830?: CVE-2025-63830 affects Cksource Ckfinder. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-63830?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-63830 have an EU (EUVD) identifier?: Yes. CVE-2025-63830 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-197625.
When was CVE-2025-63830 published?: CVE-2025-63830 was published on 2025-11-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cksource:ckfinder:1.4.3:*:*:*:*:*:*:*

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