CVE-2026-26993

MEDIUM

4.6

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.14.6

SeveridadMEDIUM

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

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioREQUIRED

Publicado2/20/2026

Ultima modificacion3/3/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

flintsh:flare

Debilidades (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)

Correlaciones IOC

Sin correlaciones registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.