6.1

CVE-2025-63830: cksource ckfinder Cross-site Scripting

CVSS: 6.1v3.1MediumAnalyzed
Published 14-11-2025Last modified 14-11-2025
Open JSON

Vulnerability summary

CVE-2025-63830 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in cksource ckfinder. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 17.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
34/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.27%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 14-11-2025
    PublishedVulnerability first disclosed.
  2. 14-11-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

17%

Versus all other CVEs

30-day change

+0.02 pp

From 0.25% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.27%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Cve 2025 63830

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Cksource1 product

1 vendor · 1 product

References

2 links