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CVE-2026-128893

WordPress Wise Chat plugin <= 3.4.5 - Cross Site Scripting (XSS) vulnerability

  • High 7.1

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Marcin Wise Chat wise-chat allows Reflected XSS.This issue affects Wise Chat: from n/a through 3.4.5.

Key facts

Published
15 Nov 2026
Last changed
15 Nov 2026
Assigned by
Patchstack

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 7.1CVSS 3.1, Highfrom the CNA (Patchstack)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

What to do

  • Update the WordPress Wise Chat plugin to the latest available version (at least 3.4.6).CNA solution statement

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

Reflected XSS (CNA impact statement)

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
MarcinWise Chat
  • Default status: unaffected
  • 0 up to and including 3.4.5 (affected); at 3.4.6 unaffected

Timeline

  1. 15 Nov 2026 Published

Weakness

Practice this bug class

HackZoneLabs has a hands-on lab on XSS (stored, reflected, DOM) (CWE-79).

Open the learning platform

References