Security Advisory

CVE-2026-26993

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-02-20 02:33:16

Last updated 2026-02-23 18:09:14

Assigner GitHub_M

State PUBLISHED

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 applications 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.

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