Unrated severityNVD Advisory· Published Jun 18, 2026
SysBasics Customize My Account for WooCommerce <= 4.3.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
CVE-2026-12136
Description
The Customize My Account For Woocommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'sysbasics_user_avatar' shortcode in versions up to, and including, 4.3.6. This is due to insufficient input sanitization and output escaping on user supplied attributes (min_height, min_width, max_height, max_width) in the wcmamtx_get_avatar_default() function, which are concatenated unescaped into the get_avatar() extra_attr style attribute. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <=4.3.6
Patches
Vulnerability mechanics
References
5- plugins.trac.wordpress.org/browser/customize-my-account-for-woocommerce/tags/4.3.6/include/sysbasics-avatar-upload.phpmitre
- plugins.trac.wordpress.org/browser/customize-my-account-for-woocommerce/tags/4.3.6/include/sysbasics-avatar-upload.phpmitre
- plugins.trac.wordpress.org/browser/customize-my-account-for-woocommerce/tags/4.3.6/include/wcmamtx_extra_functions.phpmitre
- plugins.trac.wordpress.org/changesetmitre
- www.wordfence.com/threat-intel/vulnerabilities/id/44d041ca-caa6-410d-b2d1-7a63208cc512mitre
News mentions
1- Wordfence Intelligence Weekly WordPress Vulnerability Report (June 15, 2026 to June 21, 2026)Wordfence Blog · Jun 25, 2026