MantisBT: Private Bugnote Attachment Content Leak via REST API_CVE-2026-42071

{
    "lastseen": "",
    "description": "Mantis Bug Tracker (MantisBT) is an open source issue tracker. From 2.23.0 to 2.28.1, a missing authorization check in MantisBT's file visibility function allows any authenticated user (REPORTER+) to download attachments on private bugnotes they should not be able to access, via the REST API endpoint GET /api/rest/issues/{id}/files and SOAP API mc_issue_attachment_get endpoint. This vulnerability is fixed in 2.28.2.",
    "published": "2026-05-28T20:29:20.361Z",
    "modified": "2026-05-28T20:29:20.361Z",
    "type": "cve",
    "title": "MantisBT: Private Bugnote Attachment Content Leak via REST API",
    "source": "GitHub_M",
    "references": "https://github.com/mantisbt/mantisbt/security/advisories/GHSA-pw5x-2mf9-3xc8\nhttps://github.com/mantisbt/mantisbt/commit/029d9d203d9e4ae96b3e59d552fa7395cc1e5071\nhttps://mantisbt.org/bugs/view.php?id=27039\nhttps://mantisbt.org/bugs/view.php?id=36985\nhttps://mantisbt.org/bugs/view.php?id=37092",
    "id": "CVE-2026-42071",
    "bulletinFamily": "",
    "cwe": [
        "CWE-862"
    ],
    "cvelist": null,
    "sourceData": "mantisbt mantisbt >= 2.23.0, < 2.28.2",
    "sourceHref": "",
    "cvss": {
        "score": 7.2,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N",
        "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": "mantisbt",
    "version": ">= 2.23.0, < 2.28.2",
    "vendor": "mantisbt",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}