CVE-2026-126380
Vvveb before 1.0.9.0 RCE via .phar Extension Denylist Bypass in Media Upload
CVSS Score
9.1
EPSS Score
0.0%
EPSS Percentile
0th
Vvveb before 1.0.9.0 contains a denylist bypass in system/traits/media.php where '.phar' is misconfigured with a leading dot, allowing authenticated administrators to upload .phar PHP files. Attackers can upload a GIF magic-byte polyglot webshell bypassing binary inspection and execute arbitrary OS commands as the web-server user.
| CWE | CWE-434 |
| Vendor | givanz |
| Product | vvveb |
| Published | Nov 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
givanz / Vvveb
0 < 1.0.9.0
References
github.com: https://github.com/givanz/Vvveb/security/advisories/GHSA-hcpj-pcpx-2744 github.com: https://github.com/givanz/Vvveb/commit/638a6c6f5a7a7f7ff4c65f996894f400d8fb8e77 vulncheck.com: https://www.vulncheck.com/advisories/vvveb-before-1.0.9.0-rce-via-phar-extension-denylist-bypass-in-media-upload
Credits
🔍 JosanGeorge