5.4

CVE-2026-26993

Exploit

Flare has XSS vulnerability in Raw File Preview

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Flintsh ≫ Flare Version < 1.7.1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.28% 0.195
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.4 2.3 2.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
security-advisories@github.com 4.6 2.1 2.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

https://github.com/FlintSH/Flare/commit/7763d7b954799552f287ab9260bb1353f8880163
Patch
https://github.com/FlintSH/Flare/releases/tag/v1.7.1
Product
Release Notes
https://github.com/FlintSH/Flare/security/advisories/GHSA-q8fp-w6m5-4gjm
Vendor Advisory
Exploit