Unauthenticated Cross Site Scripting Vulnerability in WP w3all phpBB Integration Plugin
CVE-2026-78293

7.1HIGH

Key Information:

Vendor

WordPress
Status
WP W3all PHPbb
Vendor
CVE Published:
27 August 2026

What is CVE-2026-78293?

A vulnerability has been identified in the WP w3all phpBB integration plugin that allows unauthenticated attackers to exploit Cross Site Scripting (XSS). This flaw affects versions up to 3.0.6, enabling attackers to inject malicious scripts into web pages viewed by users. Successful exploitation could lead to session hijacking and other malicious activities. It is crucial for users of this plugin to update to the latest version to mitigate potential risks.

Affected Version(s)

WP w3all phpBB <= 3.0.6

References

https://patchstack.com/database/wordpress/plugin/wp-w3all...
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

lanlv - HPT Vietnam Coporation | Patchstack Bug Bounty Program
.