Cross Site Scripting Vulnerability in Welcart e-Commerce by WordPress
CVE-2026-27539

7.1HIGH

Key Information:

Vendor

WordPress
Status
Welcart E-commerce
Vendor
CVE Published:
13 August 2026

What is CVE-2026-27539?

An unauthenticated Cross Site Scripting (XSS) vulnerability exists in the Welcart e-Commerce plugin for WordPress, specifically in versions up to 2.11.31. This flaw could allow attackers to inject malicious scripts into web pages viewed by users, potentially leading to session hijacking or exploitation of user data without the need for authentication. Users of affected versions are advised to review their security measures and update to the latest version to mitigate this risk.

Affected Version(s)

Welcart e-Commerce <= 2.11.31

References

https://patchstack.com/database/wordpress/plugin/usc-e-sh...
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

K. Sorrachat | Patchstack Bug Bounty Program
.