InvoicePlane has Unauthenticated Path Traversal in Guest Controller_CVE-2026-23491

{
    "lastseen": "",
    "description": "InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. A path traversal vulnerability exists in the `get_file` method of the `Guest` module's `Get` controller in InvoicePlane up to and including through 1.6.3. The vulnerability allows unauthenticated attackers to read arbitrary files on the server by manipulating the input filename. This leads to the disclosure of sensitive information, including configuration files with database credentials. Version 1.6.4 fixes the issue.",
    "published": "2026-02-18T19:52:26.304Z",
    "modified": "2026-02-18T20:50:36.374Z",
    "type": "cve",
    "title": "InvoicePlane has Unauthenticated Path Traversal in Guest Controller",
    "source": "GitHub_M",
    "references": "https://github.com/InvoicePlane/InvoicePlane/security/advisories/GHSA-88gq-mv54-v3fc\nhttps://github.com/InvoicePlane/InvoicePlane/commit/add8bb798dde621f886823065ef1841986543c69",
    "id": "CVE-2026-23491",
    "bulletinFamily": "",
    "cwe": [
        "CWE-22"
    ],
    "cvelist": null,
    "sourceData": "InvoicePlane InvoicePlane < 1.6.4",
    "sourceHref": "",
    "cvss": {
        "score": 9.3,
        "severity": "CRITICAL",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H",
        "version": "4.0"
    },
    "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": "InvoicePlane",
    "version": "< 1.6.4",
    "vendor": "InvoicePlane",
    "ai_description": "Unauthenticated path traversal vulnerability in the Guest Controller's get_file method, allowing attackers to read arbitrary files on the server.",
    "ai_severity": "Critical",
    "ai_vendor": "InvoicePlane",
    "ai_product": "InvoicePlane",
    "ai_version": "< 1.6.4",
    "ai_score": 9.3
}