CVE-2026-41937: Unrestricted Upload of File with Dangerous Type in givanz Vvveb
Vvveb before 1.0.8.3 contains an unrestricted file upload vulnerability in the plugin upload endpoint that allows super_admin users to execute arbitrary PHP code by uploading a malicious plugin ZIP file. Attackers can craft a ZIP containing a plugin.php with a valid Slug header and a public/index.php file with arbitrary PHP code, which executes as the web server user once accessed via subsequent unauthenticated HTTP requests to the plugin's public path.
AI Analysis
Technical Summary
CVE-2026-41937 describes an unrestricted file upload vulnerability in the Vvveb plugin upload endpoint affecting versions before 1.0.8.3. Super_admin users can upload a crafted ZIP file containing a plugin.php with a valid Slug header and a public/index.php file with arbitrary PHP code. When the plugin's public path is accessed via unauthenticated HTTP requests, the malicious PHP code executes with web server privileges, leading to remote code execution.
Potential Impact
Successful exploitation allows an attacker with super_admin privileges to execute arbitrary PHP code on the server as the web server user. This can lead to full system compromise, data theft, or further attacks within the affected environment.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict super_admin access to trusted users only and monitor plugin uploads carefully to prevent malicious ZIP files.
CVE-2026-41937: Unrestricted Upload of File with Dangerous Type in givanz Vvveb
Description
Vvveb before 1.0.8.3 contains an unrestricted file upload vulnerability in the plugin upload endpoint that allows super_admin users to execute arbitrary PHP code by uploading a malicious plugin ZIP file. Attackers can craft a ZIP containing a plugin.php with a valid Slug header and a public/index.php file with arbitrary PHP code, which executes as the web server user once accessed via subsequent unauthenticated HTTP requests to the plugin's public path.
CVSS v4.0
Score 8.6high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-41937 describes an unrestricted file upload vulnerability in the Vvveb plugin upload endpoint affecting versions before 1.0.8.3. Super_admin users can upload a crafted ZIP file containing a plugin.php with a valid Slug header and a public/index.php file with arbitrary PHP code. When the plugin's public path is accessed via unauthenticated HTTP requests, the malicious PHP code executes with web server privileges, leading to remote code execution.
Potential Impact
Successful exploitation allows an attacker with super_admin privileges to execute arbitrary PHP code on the server as the web server user. This can lead to full system compromise, data theft, or further attacks within the affected environment.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict super_admin access to trusted users only and monitor plugin uploads carefully to prevent malicious ZIP files.
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: 6a05e885ec166c07b0eee24d
Added to database: 05/14/2026, 15:21:41 UTC
Last enriched: 07/30/2026, 00:37:57 UTC
Last updated: 08/14/2026, 00:41:12 UTC
Views: 102
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