CVE-2026-13005 json
MxChat <= 3.2.10 - Authenticated (Admin+) Stored Cross-Site Scripting via 'intro_message' Setting
published 3mo ago modified 3mo ago also EUVD-2026-44854
- cvss
- 4.4
- 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 25%
- public exploits
- 0
- none known
Summary
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.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3mo ago
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.4 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N |
Affected products
- mxchat MxChat – AI Chatbot & Content Generation for WordPress
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/120bc64f-05ec-41e7-9ed4-d88014f4a3ea?source=cve
- plugins.trac.wordpress.org /browser/mxchat-basic/tags/3.2.10/includes/class-mxchat-admin.php#L7811
- plugins.trac.wordpress.org /browser/mxchat-basic/tags/3.2.10/admin/class-ajax-handler.php#L145
- plugins.trac.wordpress.org /browser/mxchat-basic/tags/3.2.10/admin/class-ajax-handler.php#L522
- plugins.trac.wordpress.org /browser/mxchat-basic/tags/3.2.10/admin/class-ajax-handler.php#L528
- plugins.trac.wordpress.org /changeset?reponame=&old=3590075%40mxchat-basic&new=3590075%40mxchat-basic
Sources
- CVE List CVE-2026-13005
- NVD CVE-2026-13005
Fencer Intel 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.