Read the docs
TI-2022-26391 Aliases CVE-2022-50939GHSA-wj49-35g3-hmvr

e107 CMS v3.2.1 - Upload Restriction Bypass with Path Traversal File Override

Priority HIGH 72CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-434.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01291 70th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
e107e107 CMS3.2.1—No fix listedCNA
  • e107 CMS Vendore107 Affected 3.2.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:e107:e107:3.2.1:*:*:*:*:*:*:*3.2.1Vulnerablee107
  • cpe:2.3:a:e107:e107:3.2.1:*:*:*:*:*:*:* Versions 3.2.1 Vulnerable ·e107

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-50939
  2. 2026-10-03 Alias added: GHSA-wj49-35g3-hmvr

References

Exploit 1

Other 2

  • TI-2022-26359 e107 CMS v3.2.1 - Reflected XSS via Comment Flow CVSS 3.1CRITICAL 9.8
  • TI-2022-26369 e107 CMS v3.2.1 - Upload restriction bypass (Authenticated [Admin])+ Server file override CVSS 4.0HIGH 8.7
  • TI-2022-26361 e107 CMS v3.2.1 - Admin Upload Restriction Bypass + RCE CVSS 4.0HIGH 8.6
  • TI-2023-18122 Cross Site Scripting vulnerability in e107 v.2.3.2 allows a remote attacker to execute… CVSS 3.1MEDIUM 5.4
  • TI-2025-10948 e107 CMS Avatar image.php path traversal CVSS 4.0MEDIUM 5.3
  • TI-2022-26360 e107 CMS v3.2.1 - Admin Upload Restriction Bypass + Stored XSS CVSS 4.0MEDIUM 4.8
See all 76 →

Sources

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