CVE-2026-66636CWE-79cross-site-scripting

CVE-2026-66636

Medium · published August 18, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
12.4
In the wild
Unconfirmed
What it is

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Marcin Wise Chat wise-chat allows Stored XSS.This issue affects Wise Chat: from n/a through 3.4.3.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00224 · 12.4th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-08-18T19:16Z
References (1)
https://patchstack.com/database/wordpress/plugin/wise-chat/vulnerability/wordpress-wise-chat-plugin-3-4-cross-site-scripting-xss-vulnerability?_s_id=cve · [email protected]
EPSS history
Timeline
  • 18 AUG 13:59Z
    WordPress Wise Chat plugin <= 3.4 - Cross Site Scripting (XSS) vulnerability
    cvelistv5