Herd Effects <= 5.2.2 - Authenticated (Administrator+) Stored Cross-Site Scripting

4.4
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2023-4022
CVSS 4.4 (Medium)
Publicly Published August 21, 2023
Last Updated September 14, 2023
Researcher Bob Matyas - Automattic

Description

The Herd Effects plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in versions up to, and including, 5.2.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

References

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Vulnerability Details for Social Proof Popups & Real-Time Notifications – Herd Effects

Software Type Plugin
Software Slug mwp-herd-effect (view on wordpress.org)
Patched? Yes
Remediation Update to version 5.2.3, or a newer patched version
Affected Version
  • < 5.2.3
Patched Version
  • 5.2.3

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