Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/68973?format=api",
    "vulnerability_id": "VCID-n7we-aaue-5fa6",
    "summary": "The Login as User plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.0.3. This is due to the handle_return_to_admin() function trusting a client-controlled cookie (oclaup_original_admin) to determine which user to authenticate as, without any server-side verification that the cookie value was legitimately set during an admin-initiated user switch. This makes it possible for authenticated attackers, with Subscriber-level access and above, to escalate their privileges to administrator by setting the oclaup_original_admin cookie to an administrator's user ID and triggering the \"Return to Admin\" functionality.",
    "aliases": [
        {
            "alias": "CVE-2026-5617"
        }
    ],
    "fixed_packages": [],
    "affected_packages": [],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2026-5617",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.00054",
                    "scoring_system": "epss",
                    "scoring_elements": "0.17299",
                    "published_at": "2026-06-11T12:55:00Z"
                },
                {
                    "value": "0.00054",
                    "scoring_system": "epss",
                    "scoring_elements": "0.17451",
                    "published_at": "2026-06-14T12:55:00Z"
                },
                {
                    "value": "0.00054",
                    "scoring_system": "epss",
                    "scoring_elements": "0.17479",
                    "published_at": "2026-06-13T12:55:00Z"
                },
                {
                    "value": "0.00054",
                    "scoring_system": "epss",
                    "scoring_elements": "0.17463",
                    "published_at": "2026-06-12T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-5617"
        },
        {
            "reference_url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c0c74d48-6cfc-4899-bd2c-4a80b1f6e05f?source=cve",
            "reference_id": "c0c74d48-6cfc-4899-bd2c-4a80b1f6e05f?source=cve",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.8",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "value": "Track",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-04-15T13:32:27Z/"
                }
            ],
            "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c0c74d48-6cfc-4899-bd2c-4a80b1f6e05f?source=cve"
        },
        {
            "reference_url": "https://plugins.trac.wordpress.org/browser/one-click-login-as-user/tags/1.0.3/includes/class-login-handler.php#L45",
            "reference_id": "class-login-handler.php#L45",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.8",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "value": "Track",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-04-15T13:32:27Z/"
                }
            ],
            "url": "https://plugins.trac.wordpress.org/browser/one-click-login-as-user/tags/1.0.3/includes/class-login-handler.php#L45"
        },
        {
            "reference_url": "https://plugins.trac.wordpress.org/browser/one-click-login-as-user/trunk/includes/class-login-handler.php#L45",
            "reference_id": "class-login-handler.php#L45",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.8",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "value": "Track",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-04-15T13:32:27Z/"
                }
            ],
            "url": "https://plugins.trac.wordpress.org/browser/one-click-login-as-user/trunk/includes/class-login-handler.php#L45"
        },
        {
            "reference_url": "https://plugins.trac.wordpress.org/browser/one-click-login-as-user/tags/1.0.3/includes/class-login-handler.php#L50",
            "reference_id": "class-login-handler.php#L50",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.8",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "value": "Track",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-04-15T13:32:27Z/"
                }
            ],
            "url": "https://plugins.trac.wordpress.org/browser/one-click-login-as-user/tags/1.0.3/includes/class-login-handler.php#L50"
        },
        {
            "reference_url": "https://wordpress.org/plugins/one-click-login-as-user/",
            "reference_id": "one-click-login-as-user",
            "reference_type": "",
            "scores": [
                {
                    "value": "8.8",
                    "scoring_system": "cvssv3.1",
                    "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "value": "Track",
                    "scoring_system": "ssvc",
                    "scoring_elements": "SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-04-15T13:32:27Z/"
                }
            ],
            "url": "https://wordpress.org/plugins/one-click-login-as-user/"
        }
    ],
    "weaknesses": [
        {
            "cwe_id": 639,
            "name": "Authorization Bypass Through User-Controlled Key",
            "description": "The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data."
        }
    ],
    "exploits": [],
    "severity_range_score": "8.8 - 8.8",
    "exploitability": null,
    "weighted_severity": null,
    "risk_score": null,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-n7we-aaue-5fa6"
}