CVE-2025-63830

MEDIUM

CKFinder 1.4.3 - XSS

Title source: llm

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.

Exploits (1)

nomisec WRITEUP

by Shubham03007 · poc

https://github.com/Shubham03007/CVE-2025-63830

View Code ZIP pw:eip

References (2)

[Product] https://ckeditor.com/ckfinder/changelog/

[Exploit, Third Party Advisory] https://github.com/Shubham03007/CVE-2025-63830/blob/main/README.md

Scores

CVSS v3 6.1

EPSS 0.0001

EPSS Percentile 0.7%

Attack Vector NETWORK

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

Details

CWE

CWE-79

Status published

Products (1)

cksource/ckfinder 1.4.3

Published Nov 14, 2025

Tracked Since Feb 18, 2026