CVE-2026-41938

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

8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.5% chance of exploitation in the next 30 days; higher than 45% of CVEs (scores of 2026-10-26)

CWE

CWE-434

Published

2026-05-06

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

References

• 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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