{"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": "2026-03-11T02:22:46.456Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-03-11T02:22:46.456Z"}, "affected": [{"vendor": "properfraction", "product": "Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content \u2013 ProfilePress", "versions": [{"version": "*", "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"}]}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-3453", "lastModified": "2026-03-11T03:15:56.227", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "security@wordfence.com", "type": "Primary"}]}, "published": "2026-03-11T03:15:56.227", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.9/src/Membership/Controllers/CheckoutController.php#L237"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.9/src/Membership/Controllers/CheckoutController.php#L334"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.9/src/Membership/Controllers/CheckoutController.php#L342"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/changeset/3474509/wp-user-avatar/trunk/src/Membership/Controllers/CheckoutController.php"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/74e4808f-bd6f-4e62-91cb-31c86a427498?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-639"}], "source": "security@wordfence.com", "type": "Primary"}]}

{}

{}