SecuriTricks - CVE-2026-26993

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.

Product(s) Impacted

Vendor	Product	Versions
Flare	Flare	1.7.0, <1.7.1

Weaknesses

Common security weaknesses mapped to this vulnerability.

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.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	flare	flare	1.7.0	/	/	/	/	/	/	/
a	flare	flare	<1.7.1	/	/	/	/	/	/	/

References

https://github.com/FlintSH/Flare/commit/7763d7b954799552f287ab9260bb1353f8880163

https://github.com/FlintSH/Flare/releases/tag/v1.7.1

https://github.com/FlintSH/Flare/security/advisories/GHSA-q8fp-w6m5-4gjm

CVSS Score

4.6 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: LOW
Scope: UNCHANGED
Confidentiality Impact: LOW
Integrity Impact: LOW
Availability Impact: NONE

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

View Vector String

Timeline

Published: Feb. 20, 2026, 3:16 a.m.
Last Modified: Feb. 20, 2026, 1:49 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-26993