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TI-2021-16680 Aliases CVE-2021-39308GHSA-mpg5-6753-g2p4

WooCommerce myghpay Payment Gateway <= 3.0 Reflected Cross-Site Scripting

Priority LOW 29CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The WooCommerce myghpay Payment Gateway WordPess plugin is vulnerable to Reflected Cross-Site Scripting via the clientref parameter found in the ~/processresponse.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 3.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00782 56th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
WooCommerce myghpay Payment GatewayWooCommerce myghpay Payment Gateway3.0 – 3.0—No fix listedCNA
  • WooCommerce myghpay Payment Gateway VendorWooCommerce myghpay Payment Gateway Affected 3.0 – 3.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:woo-myghpay-payment-gateway_project:woo-myghpay-payment-gateway:*:*:*:*:*:wordpress:*:*up to 3.0VulnerableWoo-myghpay-payment-gateway Project

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-39308
  2. 2026-10-03 Alias added: GHSA-mpg5-6753-g2p4

References

Advisory 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences