CVE-2026-21855 PUBLISHED

Tarkov Data Manager has Unauthenticated Reflected XSS

Assigner: GitHub_M
Reserved: 05.01.2026 Published: 07.01.2026 Updated: 07.01.2026

The Tarkov Data Manager is a tool to manage the Tarkov item data. Prior to 02 January 2025, a reflected Cross Site Scripting (XSS) vulnerability in the toast notification system allows any attacker to execute arbitrary JavaScript in the context of a victim's browser session by crafting a malicious URL. A series of fix commits on 02 January 2025 fixed this and other vulnerabilities.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CVSS Score: 9.3

Product Status

Vendor the-hideout
Product tarkov-data-manager
Versions
  • Version <= 2.0.0 is affected

References

Problem Types

  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE