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Medium severity · published Nov 21, 2025
CVE-2025-66099
WordPress Chat Help plugin <= 3.1.3 - Broken Access Control vulnerability
5.3
CVSS
0.2%
EPSS
No
On KEV
Description
Missing Authorization vulnerability in ThemeAtelier Chat Help chat-help allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Chat Help: from n/a through <= 3.1.3.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
Chat Help · ThemeAtelier
through 3.1.3 · source: vendor
Affected product
CH
Chat Help
ThemeAtelier
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-66099
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-66099
patchstack.com
https://patchstack.com/database/Wordpress/Plugin/chat-help/vulnerability/wordpress-chat-help-plugin-3-1-3-broken-access-control-vulnerability?_s_id=cve