Vulnerability Report

CVE-2022-50939

Title: Arbitrary File Upload via Path Traversal in e107 CMS

Arbitrary File Access

Proof Of Concept

No public PoC currently indexed for CVE-2022-50939.

CWE Category CWE-22

Published Date Jan 13, 2026

Modified Date Jan 20, 2026

Exploit Status Not Found

Score 8.6 CVSS v4.0

Exploit Probability (EPSS)

1.09%

Vulnerability Summary

CVE-2022-50939: e107 CMS version 3.2.1 contains a critical file upload vulnerability that allows authenticated administrators to override arbitrary server files through path traversal. The vulnerability exists in the Media Manager's remote URL upload functionality (image.php) where the upload_caption parameter is not properly sanitized. An attacker with administrative privileges can use directory traversal sequences (../../../) in the upload_caption field to overwrite critical system files outside the intended upload directory. This can lead to complete compromise of the web application by overwriting configuration files, executable scripts, or other critical system components. The vulnerability was discovered by Hubert Wojciechowski and affects the image.php component in the admin interface.

Impacted Vendors

e107 1

Reference Links

https://e107.org/ https://e107.org/download https://www.exploit-db.com/exploits/50910 https://www.vulncheck.com/advisories/e-cms-upload-restriction-bypass-with-path-traversal-file-override

CVSS v4.0

Source Entity [email protected]

Severity HIGH

8.6

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

N/A

RAW VECTOR

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1