CVE-2026-41938: Unrestricted Upload of File with Dangerous Type in givanz Vvveb
Vvveb before version 1.0.8.2 contains an unrestricted file upload vulnerability in the media upload handler that allows authenticated users with media-upload permissions to bypass extension restrictions by uploading a .htaccess file to map .phtml extensions to the PHP handler. Attackers can upload a .phtml file containing arbitrary PHP code and execute the uploaded payload through a subsequent unauthenticated HTTP GET request to the uploaded file, resulting in remote code execution with web server privileges.
AI Analysis
Technical Summary
CVE-2026-41938 is an unrestricted file upload vulnerability in givanz Vvveb prior to version 1.0.8.2. The vulnerability exists in the media upload handler, where authenticated users with media-upload permissions can upload a .htaccess file to override extension restrictions and map .phtml files to the PHP handler. Subsequently, attackers can upload a .phtml file containing arbitrary PHP code and execute it remotely through an unauthenticated HTTP GET request. This results in remote code execution with the privileges of the web server process.
Potential Impact
Successful exploitation allows remote code execution on the web server with its privileges, potentially leading to full system compromise depending on the server configuration. The vulnerability requires authenticated access with media-upload permissions but does not require user interaction beyond that. This can lead to unauthorized control over the affected system.
Mitigation Recommendations
No official patch or remediation is currently confirmed. Users should upgrade to version 1.0.8.2 or later once available, as the vulnerability affects versions before 1.0.8.2. Until a fix is applied, restrict media-upload permissions to trusted users only and monitor for suspicious file uploads. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-41938: Unrestricted Upload of File with Dangerous Type in givanz Vvveb
Description
Vvveb before version 1.0.8.2 contains an unrestricted file upload vulnerability in the media upload handler that allows authenticated users with media-upload permissions to bypass extension restrictions by uploading a .htaccess file to map .phtml extensions to the PHP handler. Attackers can upload a .phtml file containing arbitrary PHP code and execute the uploaded payload through a subsequent unauthenticated HTTP GET request to the uploaded file, resulting in remote code execution with web server privileges.
CVSS v4.0
Score 8.7high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-41938 is an unrestricted file upload vulnerability in givanz Vvveb prior to version 1.0.8.2. The vulnerability exists in the media upload handler, where authenticated users with media-upload permissions can upload a .htaccess file to override extension restrictions and map .phtml files to the PHP handler. Subsequently, attackers can upload a .phtml file containing arbitrary PHP code and execute it remotely through an unauthenticated HTTP GET request. This results in remote code execution with the privileges of the web server process.
Potential Impact
Successful exploitation allows remote code execution on the web server with its privileges, potentially leading to full system compromise depending on the server configuration. The vulnerability requires authenticated access with media-upload permissions but does not require user interaction beyond that. This can lead to unauthorized control over the affected system.
Mitigation Recommendations
No official patch or remediation is currently confirmed. Users should upgrade to version 1.0.8.2 or later once available, as the vulnerability affects versions before 1.0.8.2. Until a fix is applied, restrict media-upload permissions to trusted users only and monitor for suspicious file uploads. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-04-22T18:50:43.621Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69fb9131cbff5d86102f43c6
Added to database: 05/06/2026, 19:06:25 UTC
Last enriched: 07/30/2026, 00:38:04 UTC
Last updated: 07/31/2026, 19:30:18 UTC
Views: 114
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