What’s Vulnerable › Vulnerabilities
CVE-2026-21855: Tarkov Data Manager has Unauthenticated Reflected XSS
- Severity: medium (CVSS 6.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2026-01-07 · updated 2026-06-17
- Weakness: CWE-79
Description
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.
Affected products
- the-hideout tarkov-data-manager: before 2025-01-02 — fixed in 2025-01-02
How to fix
Upgrade to a fixed version: the-hideout tarkov-data-manager 2025-01-02. Check the vendor advisory for mitigations.
References
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