CVE-2019-20455

Name: CVE-2019-20455
Creator: NVD / NIST
Published: 2020-02-14T16:15:09.68+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 0.98%

Last modified Jun 17, 2026

CVE-2019-20455 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. Gateways/Gateway.php in Heartland & Global Payments PHP SDK before 2.0.0 does not enforce SSL certificate validations.. EPSS estimates a 0.98% chance of exploitation in the next 30 days.

Description

Gateways/Gateway.php in Heartland & Global Payments PHP SDK before 2.0.0 does not enforce SSL certificate validations.

Metrics

CVSS 3.1

5.9/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.98%

57.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Globalpayments	Php Sdk	< 2.0.0

References

https://github.com/globalpayments/php-sdk/compare/1.3.3...2.0.0Patch, Release Notes, Third Party Advisory
https://github.com/globalpayments/php-sdk/pull/8Exploit, Third Party Advisory
https://github.com/globalpayments/php-sdk/releases/tag/2.0.0Release Notes, Third Party Advisory
https://winterdragon.ca/global-payments-vulnerability/Exploit, Patch, Third Party Advisory, URL Repurposed
https://github.com/globalpayments/php-sdk/compare/1.3.3...2.0.0Patch, Release Notes, Third Party Advisory
https://github.com/globalpayments/php-sdk/pull/8Exploit, Third Party Advisory
https://github.com/globalpayments/php-sdk/releases/tag/2.0.0Release Notes, Third Party Advisory
https://winterdragon.ca/global-payments-vulnerability/Exploit, Patch, Third Party Advisory, URL Repurposed

Timeline

Published: Feb 14, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-20455?

Gateways/Gateway.php in Heartland & Global Payments PHP SDK before 2.0.0 does not enforce SSL certificate validations.

How severe is CVE-2019-20455?

CVE-2019-20455 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.98% probability of exploitation in the next 30 days.

How do I fix CVE-2019-20455?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-20455?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST