CVE-2025-63830

MEDIUM
2025-11-14 [email protected]
6.1
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 19:22 vuln.today
PoC Detected
Nov 19, 2025 - 13:20 vuln.today
Public exploit code
CVE Published
Nov 14, 2025 - 18:15 nvd
MEDIUM 6.1

Tags

File Upload XSS Ckfinder

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.

Analysis

CKFinder 1.4.3 is vulnerable to Cross Site Scripting (XSS) in the File Upload function. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical Context

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. 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. Affected products include: Cksource Ckfinder.

Affected Products

Cksource Ckfinder.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Priority Score

51
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +30
POC: +20

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CVE-2025-63830 vulnerability details – vuln.today
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