Path Traversal in E107
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.013 (68.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.013 · change: +0.001
Affected products
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/50910 (Exploit, VDB Entry, Third Party Advisory, exploit)
- e107.org/ (Product, product)
- e107.org/download (Product, product)
- www.vulncheck.com/advisories/e-cms-upload-restriction-bypass-with-path-traversa… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2022-50939?
- CVE-2022-50939 is a high-severity vulnerability in E107, classified under Path Traversal. CVSS score: 7.2/10. Published 2026-01-13.
- How severe is CVE-2022-50939?
- High severity. CVSS v3 base score is 7.2 out of 10.