PT-2026-40944 · Givanz+1 · Vvveb

Basant Kumar + 1 · Published 2026-05-14 · Updated 2026-05-14 · CVE-2026-41937

Positive Technologies (AI Summary)

CVSS v4.0

8.6

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Vvveb versions prior to 1.0.8.3

Description An unrestricted file upload issue exists in the plugin upload endpoint. This allows users with super admin privileges to execute arbitrary PHP code by uploading a malicious plugin ZIP file. The attack involves crafting a ZIP archive containing a plugin.php file with a valid Slug header and a public/index.php file containing arbitrary PHP code. This code executes with the permissions of the web server user when accessed through unauthenticated HTTP requests to the public path of the plugin.

Recommendations Update to version 1.0.8.3 or later.

Exploit

Fix

Unrestricted File Upload

Weakness Enumeration

CWE-61

CWE-434

Related Identifiers

CVE-2026-41937

Affected Products

Vvveb

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41937.json · Exploit
• https://github.com/givanz/Vvveb/commit/04f0294350ec429e307cd31c2e777a4797c868d6 · Patch
• https://osv.dev/vulnerability/CVE-2026-41937 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-41937 · Security Note
• https://github.com/givanz/Vvveb · Note
• https://github.com/givanz/Vvveb/releases/tag/1.0.8.3 · Note
• https://vulncheck.com/advisories/vvveb-unrestricted-file-upload-rce-via-plugin-upload · Note