{"schemaVersion":3,"id":"CVE-2023-51543","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Authentication Bypass by Spoofing vulnerability in Metagauss RegistrationMagic allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects RegistrationMagic: from n/a through 5.2.5.0.","dates":{"published":"2024-06-04T12:25:25.664Z","modified":"2026-04-28T16:09:04.267Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"wordfence","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00376,"percentile":0.30311,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00376},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00376,"percentile":0.30311}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00376,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00376,"percentile":0.30311}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-290","name":"Authentication Bypass by Spoofing","description":"This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/290.html"},{"id":"CWE-693","name":"Protection Mechanism Failure","description":"The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.","type":"weakness","status":"Draft","abstraction":"Pillar","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/693.html"}],"affected":[{"vendor":"metagauss","product":"registrationmagic","name":"registrationmagic","label":"registrationmagic","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ n/a, ≤ 5.2.5.0","noFixRecorded":false,"fixedIn":null},{"text":"< 5.2.5.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ n/a, ≤ 5.2.5.0 | < 5.2.5.1","eol":null,"hubHref":"/vendor/metagauss/registrationmagic"},{"vendor":"wordpress","product":"custom-registration-form-builder-with-submission-manager","name":"RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login","label":"custom-registration-form-builder-with-submission-manager","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 5.2.5.0 (fixed in 5.2.5.1)","noFixRecorded":false,"fixedIn":"5.2.5.1"}],"versionsText":"≤ 5.2.5.0 (fixed in 5.2.5.1)","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://patchstack.com/database/vulnerability/custom-registration-form-builder-with-submission-manager/wordpress-registrationmagic-plugin-5-2-5-0-ip-limit-bypass-vulnerability?_s_id=cve","label":"patchstack.com/database/…","hostname":"patchstack.com","tags":["VDB Entry","Third Party Advisory"]},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/4b37b57c-4a11-4971-b38f-12c70d71b76b","label":"www.wordfence.com/threat-intel/vulnerabilities/id/4b37b57c-4a11-4971-b38f-12c70d71b76b","hostname":"www.wordfence.com","tags":["Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2024-06-04T12:25:25.664Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-28T16:09:04.267Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T22:29:14.672Z","stale":false,"partial":false}}