{"schemaVersion":3,"id":"CVE-2022-4237","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"The Welcart e-Commerce WordPress plugin before 2.8.6 does not validate user input before using it in file_exist() functions via various AJAX actions available to any authenticated users, which could allow users with a role as low as subscriber to perform PHAR deserialisation when they can upload a file and a suitable gadget chain is present on the blog","dates":{"published":"2023-01-02T21:49:40.901Z","modified":"2025-04-10T18:35:37.520Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.8,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"wordfence","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01085,"percentile":0.64726,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.012000000000000031,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.01073},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01085,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01085,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01085,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01085,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01085,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01085,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01085,"percentile":0.64726}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01073,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01085,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01085,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01085,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01085,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01085,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01085,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01085,"percentile":0.64726}]},"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":[{"id":"REF_CE57AB64E1A79AC0","name":"Exploit Reference (wpscan.com)","source":"reference","url":"https://wpscan.com/vulnerability/7a4b790c-49ae-46bc-9544-e188deae243f","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-502","name":"Deserialization of Untrusted Data","description":"The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/502.html"}],"affected":[{"vendor":"unknown","product":"welcart e-commerce","name":"Welcart e-Commerce","label":"welcart e-commerce","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 2.8.6","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.8.6","eol":null,"hubHref":"/vendor/unknown/welcart_e-commerce"},{"vendor":"welcart","product":"welcart_e-commerce","name":"welcart e-commerce","label":"welcart_e-commerce","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 2.8.6","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.8.6","eol":null,"hubHref":"/vendor/welcart/welcart_e-commerce"},{"vendor":"wordpress","product":"usc-e-shop","name":"Welcart e-Commerce","label":"usc-e-shop","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 2.8.5 (fixed in 2.8.6)","noFixRecorded":false,"fixedIn":"2.8.6"}],"versionsText":"≤ 2.8.5 (fixed in 2.8.6)","eol":null,"hubHref":null}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://wpscan.com/vulnerability/7a4b790c-49ae-46bc-9544-e188deae243f","label":"wpscan.com/vulnerability/7a4b790c-49ae-46bc-9544-e188deae243f","hostname":"wpscan.com","tags":["Exploit","VDB Entry","Technical Description","Third Party Advisory"]},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/518be2c6-36ca-4015-8b7f-451a806c7b1d","label":"www.wordfence.com/threat-intel/vulnerabilities/id/518be2c6-36ca-4015-8b7f-451a806c7b1d","hostname":"www.wordfence.com","tags":["Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2023-01-02T21:49:40.901Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-04-10T18:35:37.520Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":45,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T21:43:38.229Z","stale":false,"partial":false}}