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

published 2026-10-06 33 d ago modified 2026-10-07 32 d ago also EUVD-2026-93252

cvss: 7.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits: 0; none known

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.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 33 d ago (2026-10-06)

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

Affected products

Marcin Wise Chat

Classification

Weakness

CWE-862 Missing Authorization

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/wordpress/plugin/wise-chat/vulnerability/wordpress-wise-chat-plugin-3-4-1-broken-access-control-vuln
vdb-entry

Sources

CVE List CVE-2026-39730
NVD CVE-2026-39730

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary