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Vulnerability record · CVE-2026-41938 · published 6 May 2026

CVE-2026-41938: Unrestricted file upload vulnerability

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.

8.7 CVSS 4.0 High EPSS 1.00% · top 38.7% CWE-434 · Unrestricted file upload Deferred
8.7CVSS 4.0 base score
1.00%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

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:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/givanz/Vvveb/commit/54a9e846fb94192f1b31ae81d81d25c874662e6a
https://github.com/givanz/Vvveb/releases/tag/1.0.8.2
https://github.com/givanz/Vvveb/security/advisories/GHSA-wwmv-4g9g-p48g
https://www.vulncheck.com/advisories/vvveb-rce-via-media-upload-handler
https://github.com/givanz/Vvveb/security/advisories/GHSA-wwmv-4g9g-p48g

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Source: NIST National Vulnerability Database (record CVE-2026-41938), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.