File Upload Vulnerability in e107 CMS by e107
CVE-2022-50939

8.6HIGH

Key Information:

Vendor

E107

Status
E107 Cms
Vendor
CVE Published:
13 January 2026

Badges

👾 Exploit Exists

What is CVE-2022-50939?

e107 CMS version 3.2.1 contains a file upload vulnerability that permits authenticated administrators to exploit path traversal techniques, enabling them to overwrite arbitrary server files. This arises from insufficient input validation in the Media Manager's remote URL upload functionality (image.php). Through manipulation of the upload_caption parameter, an attacker can insert directory traversal sequences (such as '../../../') which could lead to overwriting critical system files, including configuration and executable scripts. This could ultimately result in a total compromise of the web application. The vulnerability was identified by Hubert Wojciechowski and specifically affects the image.php component in the admin interface.

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Affected Version(s)

e107 CMS 3.2.1

References

https://www.exploit-db.com/exploits/50910
exploit
https://e107.org/
product
https://e107.org/download
product

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Hubert Wojciechowski
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