Tarkov Data Manager has Unauthenticated Reflected XSS_CVE-2026-21855

{
    "lastseen": "",
    "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.",
    "published": "2026-01-07T18:16:02.728Z",
    "modified": "2026-01-07T18:37:42.582Z",
    "type": "cve",
    "title": "Tarkov Data Manager has Unauthenticated Reflected XSS",
    "source": "GitHub_M",
    "references": "https://github.com/the-hideout/tarkov-data-manager/security/advisories/GHSA-9c23-rrg9-jc89",
    "id": "CVE-2026-21855",
    "bulletinFamily": "",
    "cwe": [
        "CWE-79"
    ],
    "cvelist": null,
    "sourceData": "the-hideout tarkov-data-manager <= 2.0.0",
    "sourceHref": "",
    "cvss": {
        "score": 9.3,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "tarkov-data-manager",
    "version": "<= 2.0.0",
    "vendor": "the-hideout",
    "ai_description": "Reflected Cross Site Scripting (XSS) vulnerability in the toast notification system",
    "ai_severity": "Critical",
    "ai_vendor": "the-hideout",
    "ai_product": "Tarkov Data Manager",
    "ai_version": "<= 2.0.0",
    "ai_score": 9.3
}