Wise Chat <= 2.6.3 - Reverse Tabnabbing

Improper Input Validation
CVE CVE-2019-6780
CVSS 6.1 (Medium)
Publicly Published January 25, 2019
Last Updated January 22, 2024
Researcher MTK (Muhammad Talha Khan)


The Wise Chat plugin for WordPress is vulnerable to Reverse Tabnabbing in versions up to, and including, 2.6.3. This is due to mishandling of external links due to omitting noopener and noreferrer. This makes it possible for a chat-using attacker to provide a link that opens a new tab while silently redirecting the original - this can be used to redirect them to a phishing site on the original tab.



Vulnerability Details for Wise Chat

Software Type Plugin
Software Slug wise-chat (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.7, or a newer patched version
Affected Version
  • < 2.7
Patched Version
  • 2.7

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