CVE-2025-15475: PayHere Payment Gateway Plugin for WooCommerce <= 2.3.9 - Missing Authorization to Unauthenticated Order Status Modification

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-01-14 · updated 2026-06-17
Weakness: CWE-862

Description

The PayHere Payment Gateway Plugin for WooCommerce plugin for WordPress is vulnerable to unauthorized modification of data due to an improper validation logic in the check_payhere_response function in all versions up to, and including, 2.3.9. This makes it possible for unauthenticated attackers to change the status of pending WooCommerce orders to paid/completed/on hold.

Affected products

PayHere Payment Gateway: through 2.3.9

References

https://plugins.trac.wordpress.org/browser/payhere-payment-gateway/tags/2.3.9/gateway/class-wcgatewaypayhere.php#L709
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3440771%40payhere-payment-gateway&new=3440771%40payhere-payment-gateway&sfp_email=&sfph_mail=#file10
https://www.wordfence.com/threat-intel/vulnerabilities/id/e0c92241-0bef-4f87-8478-4d805435f09d?source=cve

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