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.
References (4)
Core 4
Core References
Release Notes release-notes
https://github.com/givanz/Vvveb/releases/tag/1.0.8.2
Vendor Advisory vendor-advisory
https://github.com/givanz/Vvveb/security/advisories/GHSA-wwmv-4g9g-p48g
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/vvveb-rce-via-media-upload-handler
Scores
CVSS v3
8.8
EPSS
0.0054
EPSS Percentile
41.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-434
Status
published
Products (1)
givanz/Vvveb
< 1.0.8.2
Published
May 06, 2026
Tracked Since
May 07, 2026