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CVE-2026-34429

MEDIUM

5.4

Descricao

Vvveb prior to 1.0.8.1 contains a stored cross-site scripting vulnerability that allows authenticated users with media upload and rename permissions to execute arbitrary JavaScript by bypassing MIME type validation and renaming uploaded files to executable extensions. Attackers can prepend a GIF89a header to HTML/JavaScript payloads to bypass upload validation, rename the file to .html extension, and execute malicious scripts in an administrator's browser session to create backdoor accounts and upload malicious plugins for remote code execution.

Detalhes CVE

Pontuacao CVSS v3.15.4

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioREQUIRED

Publicado4/20/2026

Ultima modificacao4/20/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-79

Referencias

https://delta.cyberm.ca/bugbin/ur66bvB7BYTC9y0eCIk3uzhZQgbjzAkG/(disclosure@vulncheck.com)

https://github.com/givanz/Vvveb/commit/cc997d3359ea5e49a45c132f5dee3bc80fb441d7(disclosure@vulncheck.com)

https://github.com/givanz/Vvveb/releases/tag/1.0.8.1(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/vvveb-stored-xss-via-media-upload-and-rename(disclosure@vulncheck.com)

Correlacoes IOC

Sem correlacoes registradas

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