CVE-2019-15862

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-09-26 · updated 2026-06-17
Weakness: CWE-434

Description

An issue was discovered in CKFinder through 2.6.2.1. Improper checks of file names allows remote attackers to upload files without any extension (even if the application was configured to accept files only with a defined set of extensions). This affects CKFinder for ASP, CKFinder for ASP.NET, CKFinder for ColdFusion, and CKFinder for PHP.

Affected products

CKSource CKFinder: before 2.6.3 — fixed in 2.6.3

How to fix

Upgrade to a fixed version: CKSource CKFinder 2.6.3. Check the vendor advisory for mitigations.

References

https://ckeditor.com/blog/CKFinder-3.5.1-and-CKFinder-2.6.3-released/
https://ckeditor.com/blog/CKFinder-3.5.1-and-CKFinder-2.6.3-released/

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