VULNERABILITY INTELLIGENCE

CVE-2026-5026

CVSS score5.4 MEDIUM
EPSS probability0.16%
CISA KEVNot currently listed
Published2026-03-27
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Description

The '/api/v1/files/images/{flow_id}/{file_name}' endpoint serves SVG files with the 'image/svg+xml' content type without sanitizing their content. Since SVG files can contain embedded JavaScript, an attacker can upload a malicious SVG that executes arbitrary JavaScript when viewed by other users, leading to stored cross-site scripting (XSS). This allows stealing authentication tokens stored in cookies, including JWT access and refresh tokens.

Weakness classification

  • vulnreport@tenable.com: CWE-79

Primary references