CVE-2026-26993

MEDIUM

4.6

Description

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.

Details CVE

Score CVSS v3.14.6

SeveriteMEDIUM

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurREQUIRED

Publie2/20/2026

Derniere modification3/3/2026

Sourcenvd

Observations honeypot0

Produits affectes

flintsh:flare

Faiblesses (CWE)

CWE-79

References

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)

Correlations IOC

Aucune correlation enregistree

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