CVE-2025-63830

MEDIUM

Published Nov 14, 2025 Modified Nov 19, 2025 CWE-79

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.

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CVSS v3.1 Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
cksource	ckfinder	All

References

Exploits

https://github.com/Shubham03007/CVE-2025-63830/blob/main/README.md

Other References

https://ckeditor.com/ckfinder/changelog/

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. It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2025-63830? +

CVE-2025-63830 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-63830? +

CVE-2025-63830 affects products from cksource, specifically: ckfinder. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-63830? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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