CVE-2026-39730highCWE-862

CVE-2026-39730: high-severity vulnerability in Marcin Wise Chat

WordPress Wise Chat plugin <= 3.4.3 - Broken Access Control vulnerability

Published · Updated

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.1epss 0.3%
exploitation probability
0.3%top 78% of all CVEs
observed exploitation
nono source reports it
Missing Authorization vulnerability in Marcin Wise Chat wise-chat allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Wise Chat: from n/a through 3.4.3.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Affected products
Marcin · Wise Chat
Related CVEs — Marcin Wise Chat

In the same product, most dangerous first.

CVE-2026-81784HIGHWordPress Wise Chat plugin <= 3.4.2 - PHP Object Injection vulnerabilityEPSS 0.4%CVE-2026-66636MEDIUMWordPress Wise Chat plugin <= 3.4.3 - Cross Site Scripting (XSS) vulnerabilityEPSS 0.2%
References
https://patchstack.com/database/wordpress/plugin/wise-chat/vulnerability/wordpress-wise-chat-plugin-3-4-1-broken-access-control-vulnerability?_s_id=cve