{"id":"CVE-2019-20455","aliases":["EUVD-2021-2239","GHSA-pm77-c4q7-3fwj"],"status":"published","title":"Improper Certificate Validation in Heartland \u0026 Global Payments PHP SDK","description":"Gateways/Gateway.php in Heartland \u0026 Global Payments PHP SDK before 2.0.0 does not enforce SSL certificate validations.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00976,"percentile":0.62557,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2020-02-14T15:43:53Z","modified":"2026-10-20T10:50:54Z","fixes":[{"ecosystem":"Packagist","package":"globalpayments/php-sdk","fixed_in":["2.0.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"globalpayments/php-sdk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.0"}]}]},{"source":"osv","ecosystem":"Packagist","package":"globalpayments/php-sdk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.0"}]}],"versions":["1.0.0","1.1.0","1.1.1","1.1.2","1.1.3","1.2.0","1.2.1","1.2.2","1.2.3","1.3.0","1.3.1","1.3.2","1.3.3"]}],"products":[{"vendor":"globalpayments","product":"php_sdk"}],"references":[{"url":"https://github.com/globalpayments/php-sdk/releases/tag/2.0.0","tags":["x_refsource_MISC","x_transferred","Release 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Advisory","evidence","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-20455","tags":["advisory"]},{"url":"https://github.com/globalpayments/php-sdk/pull/8/commits/c86e18f28c5eba0d6ede7d557756d978ea83d3c9","tags":["web"]},{"url":"https://github.com/advisories/GHSA-pm77-c4q7-3fwj"},{"url":"https://github.com/globalpayments/php-sdk","tags":["package"]},{"url":"https://winterdragon.ca/global-payments-vulnerability","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2019-20455","description":"Gateways/Gateway.php in Heartland \u0026 Global Payments PHP SDK before 2.0.0 does not enforce SSL certificate validations.","status":"published","published":"2020-02-14T15:43:53Z","modified":"2024-08-05T02:39:10.091Z","updated_at":"2026-11-02T14:20:17.431882Z"}],"euvd":[{"id":"EUVD-2021-2239","description":"Gateways/Gateway.php in Heartland \u0026 Global Payments PHP SDK before 2.0.0 does not enforce SSL certificate 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