CVE-2026-26993

MEDIUM

4.6

Descricao

Flare is a Next.js-based, self-hostable file sharing platform that integrates with screenshot tools. Versions 1.7.0 and below allow users to upload files without proper content validation or sanitization. By embedding malicious JavaScript within an SVG (or other active content formats such as HTML or XML), an attacker can achieve script execution in the context of the application's origin when a victim views the file in “raw” mode. This results in a stored Cross-Site Scripting (XSS) vulnerability that can be exploited to exfiltrate user data. This issue has been fixed in version 1.7.1.

Detalhes CVE

Pontuacao CVSS v3.14.6

SeveridadeMEDIUM

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioREQUIRED

Publicado2/20/2026

Ultima modificacao3/3/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

flintsh:flare

Fraquezas (CWE)

CWE-79

Referencias

https://github.com/FlintSH/Flare/commit/7763d7b954799552f287ab9260bb1353f8880163(security-advisories@github.com)

https://github.com/FlintSH/Flare/releases/tag/v1.7.1(security-advisories@github.com)

https://github.com/FlintSH/Flare/security/advisories/GHSA-q8fp-w6m5-4gjm(security-advisories@github.com)

Correlacoes IOC

Sem correlacoes registradas

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