CVE-2025-23439: WordPress TinyMCE Extended Config plugin <= 0.1.0 - Reflected Cross Site Scripting (XSS) vulnerability

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-03-03 · updated 2026-06-17
Weakness: CWE-79

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in willshouse TinyMCE Extended Config tinymce-extended-config allows Reflected XSS.This issue affects TinyMCE Extended Config: from n/a through <= 0.1.0.

Affected products

willshouse TinyMCE Extended Config: through 0.1.0

References

https://patchstack.com/database/Wordpress/Plugin/tinymce-extended-config/vulnerability/wordpress-tinymce-extended-config-plugin-0-1-0-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve

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