Cross Site Scripting Vulnerability in Coupon Affiliates Plugin for WordPress
CVE-2026-40770

7.1HIGH

Key Information:

Vendor

WordPress
Status
Coupon Affiliates
Vendor
CVE Published:
15 June 2026

What is CVE-2026-40770?

The Coupon Affiliates plugin for WordPress versions 7.5.3 and earlier is susceptible to an unauthenticated Cross Site Scripting (XSS) vulnerability. This issue allows attackers to inject malicious scripts into web pages viewed by other users, potentially leading to data theft, session hijacking, or other malicious activities. Users and administrators should promptly update to the latest version of the plugin to mitigate this risk.

Affected Version(s)

Coupon Affiliates <= 7.5.3

References

https://patchstack.com/database/wordpress/plugin/woo-coup...
vdb-entry

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Nguyen Ba Khanh | Patchstack Bug Bounty Program
.