Roxy-WI: IDOR on PUT /smon/check — any user can rewrite any tenant’s monitoring URL/IP/body_CVE-2026-45550

{
    "lastseen": "",
    "description": "Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior, PUT /smon/check (app/routes/smon/routes.py:117-138) gates only on roxywi_common.check_user_group_for_flask() \u2014 which validates that the caller has some group, not that the target check_id belongs to it. The downstream SQL update functions update_smon, update_smonHttp, update_smonTcp, update_smonPing, update_smonDns (app/modules/db/smon.py:515-562) all execute WHERE smon_id = ? with no user_group filter. The DELETE path is correctly filtered (app/modules/db/smon.py:319-327 does WHERE id = ? AND user_group = ?), demonstrating that the maintainers know the right pattern but did not apply it on UPDATE. Therefore any authenticated user can iterate over smon_id values and silently rewrite any other tenant's HTTP / TCP / Ping / DNS monitoring check. At time of publication, there are no publicly available patches.",
    "published": "2026-06-10T14:00:06.978Z",
    "modified": "2026-06-10T14:00:06.978Z",
    "type": "cve",
    "title": "Roxy-WI: IDOR on PUT /smon/check \u2014 any user can rewrite any tenant's monitoring URL/IP/body",
    "source": "GitHub_M",
    "references": "https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-856h-mvm2-2h2x",
    "id": "CVE-2026-45550",
    "bulletinFamily": "",
    "cwe": [
        "CWE-639",
        "CWE-862",
        "CWE-863"
    ],
    "cvelist": null,
    "sourceData": "roxy-wi roxy-wi <= 8.2.6.4",
    "sourceHref": "",
    "cvss": {
        "score": 9.1,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L",
        "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": "roxy-wi",
    "version": "<= 8.2.6.4",
    "vendor": "roxy-wi",
    "ai_description": "Insecure Direct Object Reference (IDOR) vulnerability in Roxy-WI, allowing any authenticated user to rewrite any other tenant's monitoring URL/IP/body",
    "ai_severity": "Critical",
    "ai_vendor": "Roxy-WI",
    "ai_product": "Roxy-WI",
    "ai_version": "<= 8.2.6.4",
    "ai_score": 9.1
}