CVE-2026-41937 PUBLISHED

Vvveb < 1.0.8.3 Unrestricted File Upload RCE via Plugin Upload

Assigner: VulnCheck
Reserved: 22.04.2026 Published: 14.05.2026 Updated: 14.05.2026

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 when accessed via unauthenticated HTTP requests to the plugin's public path.

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 8.6

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	High
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 7.2

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	High	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	givanz
Product	Vvveb
Versions	Default: affected affected from 0 to 1.0.8.3 (excl.) Version 04f0294350ec429e307cd31c2e777a4797c868d6 is unaffected

CVE-2026-41937 PUBLISHED

Vvveb < 1.0.8.3 Unrestricted File Upload RCE via Plugin Upload

Metrics

Product Status

Credits

References

Problem Types