Medium severity · published Jul 16, 2026
CVE-2026-13005
MxChat <= 3.2.10 - Authenticated (Admin+) Stored Cross-Site Scripting via 'intro_message' Setting
4.4
CVSS
0.3%
EPSS
No
On KEV
Description
The MxChat – AI Chatbot & Content Generation for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 3.2.10 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
High
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
MxChat – AI Chatbot & Content Generation for WordPress · mxchat
through 3.2.10 · source: vendor
Affected product
MA
MxChat – AI Chatbot & Content Generation for WordPress
mxchat
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-13005
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-13005
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/mxchat-basic/tags/3.2.10/admin/class-ajax-handler.php#L145
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/mxchat-basic/tags/3.2.10/admin/class-ajax-handler.php#L522
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/mxchat-basic/tags/3.2.10/admin/class-ajax-handler.php#L528
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/mxchat-basic/tags/3.2.10/includes/class-mxchat-admin.php#L7811
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset?reponame=&old=3590075%40mxchat-basic&new=3590075%40mxchat-basic
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/120bc64f-05ec-41e7-9ed4-d88014f4a3ea?source=cve
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MxChat <= 3.2.25 - Unauthenticated Stored DOM-Based Cross-Site Scripting via 'feedback' Parameter via mxchat_save_rating