What is CVE-2025-63830?

CVE-2025-63830 is a medium-severity vulnerability in Cksource Ckfinder, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-11-14.

How severe is CVE-2025-63830?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2025-63830 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Cksource Ckfinder

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (13.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Cksource Ckfinder — versions 1.4.3
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

Shubham03007/CVE-2025-63830

References

cve@mitre.org (Product)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-63830?: CVE-2025-63830 is a medium-severity vulnerability in Cksource Ckfinder, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-11-14.
How severe is CVE-2025-63830?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2025-63830 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.