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.

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Fixes

Solution

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Workaround

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History

Fri, 20 Feb 2026 03:15:00 +0000

Type Values Removed Values Added
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.
Title Flare has XSS vulnerability in Raw File Preview
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 4.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-02-20T02:33:16.709Z

Reserved: 2026-02-17T01:41:24.606Z

Link: CVE-2026-26993

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-02-20T03:16:01.153

Modified: 2026-02-20T03:16:01.153

Link: CVE-2026-26993

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses