{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-3453",
        "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "state": "PUBLISHED",
        "assignerShortName": "Wordfence",
        "dateReserved": "2026-03-02T17:56:22.573Z",
        "datePublished": "2026-03-11T02:22:46.456Z",
        "dateUpdated": "2026-04-08T17:01:14.561Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
                "shortName": "Wordfence",
                "dateUpdated": "2026-04-08T17:01:14.561Z"
            },
            "affected": [
                {
                    "vendor": "properfraction",
                    "product": "Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThanOrEqual": "4.16.11",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "The ProfilePress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.16.11. This is due to missing ownership validation on the change_plan_sub_id parameter in the process_checkout() function. The ppress_process_checkout AJAX handler accepts a user-controlled subscription ID intended for plan upgrades, loads the subscription record, and cancels/expires it without verifying the subscription belongs to the requesting user. This makes it possible for authenticated attackers, with Subscriber-level access and above, to cancel and expire any other user's active subscription via the change_plan_sub_id parameter during checkout, causing immediate loss of paid access for victims."
                }
            ],
            "title": "ProfilePress <= 4.16.11 - Insecure Direct Object Reference to Authenticated (Subscriber+) Arbitrary Subscription Cancellation/Expiration",
            "references": [
                {
                    "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/74e4808f-bd6f-4e62-91cb-31c86a427498?source=cve"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.9/src/Membership/Controllers/CheckoutController.php#L237"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.9/src/Membership/Controllers/CheckoutController.php#L334"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.9/src/Membership/Controllers/CheckoutController.php#L342"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/changeset/3474509/wp-user-avatar/trunk/src/Membership/Controllers/CheckoutController.php"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-639 Authorization Bypass Through User-Controlled Key",
                            "cweId": "CWE-639",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
                        "baseScore": 8.1,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Supanat Konprom"
                }
            ],
            "timeline": [
                {
                    "time": "2026-03-02T18:11:34.000Z",
                    "lang": "en",
                    "value": "Vendor Notified"
                },
                {
                    "time": "2026-03-10T14:08:52.000Z",
                    "lang": "en",
                    "value": "Disclosed"
                }
            ]
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2026-3453",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2026-03-11T15:38:16.449248Z"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-03-11T15:39:47.219Z"
                }
            }
        ]
    }
}