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TI-2016-09199 Aliases CVE-2016-20023GHSA-fv5g-wf76-67g3

Path traversal in CKSource CKFinder

Priority LOW 29CWE-23Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-23 and the CVSS impact.

Summary

In CKSource CKFinder before 2.5.0.1 for ASP.NET, authenticated users could download any file from the server if the correct path to a file was provided.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00368 30th percentileScored 2026-11-07
Fix Fixed CKFinder (CKSource): 2.5.0.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CKSourceCKFinder2 to before 2.5.0.12.5.0.1Patch availableCNA
  • CKFinder VendorCKSource Affected 2 to before 2.5.0.1 Fixed in 2.5.0.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cksource:ckfinder:*:*:*:*:*:asp.net:*:*before 2.5.0.1VulnerableCKSource
  • cpe:2.3:a:cksource:ckfinder:*:*:*:*:*:asp.net:*:* Versions before 2.5.0.1 Vulnerable ·CKSource

Remediation

  • Fix · CNA CKFinder (CKSource) Fixed in 2.5.0.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-20023
  2. 2026-10-03 Alias added: GHSA-fv5g-wf76-67g3

References

Other 1

  • TI-2025-39467 CKFinder 1.4.3 is vulnerable to Cross Site Scripting (XSS) in the File Upload function. CVSS 3.1MEDIUM 6.1
  • TI-2019-11922 An issue was discovered in CKFinder through 2.6.2.1. CVSS 3.1HIGH 7.5
  • TI-2019-11943 An issue was discovered in CKFinder through 2.6.2.1 and 3.x through 3.5.0. CVSS 3.1MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences