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CVE-2026-12732— LearnPress <= 4.4.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'class_wrapper_form' Shortcode Attribute

Quick assessment

Affected
thimpress LearnPress – WordPress LMS Plugin for Create and Sell Online Courses
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

thimpress LearnPress – WordPress LMS Plugin for Create and Sell Online Courses是thimpress公司的WordPress LMS插件。 WordPress LearnPress 4.4.0及之前版本存在跨站脚本漏洞，该漏洞源于对'class_wrapper_form'短代码属性输入清理和输出转义不足，可能导致拥有贡献者级别及以上权限的攻击者注入存储型跨站脚本。

CVSS 6.4 · Medium EPSS 0.33% · P24

Affected Version Matrix 1

VendorProduct Version RangeStatus
thimpress LearnPress – WordPress LMS Plugin for Create and Sell Online Courses ≤ 4.4.0 affected
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I. Basic Information for CVE-2026-12732

Vulnerability Information
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Vulnerability Title
LearnPress <= 4.4.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'class_wrapper_form' Shortcode Attribute
Source: CVE Program / CVE List V5
Vulnerability Description
The LearnPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'class_wrapper_form' shortcode attribute in versions up to, and including, 4.4.0. This is due to insufficient input sanitization and output escaping in the FilterCourseTemplate::sections() method at line 98, where the attacker-controlled attribute is inserted into an HTML class attribute via sprintf('<form class="%s">', $class_wrapper_form) without esc_attr() escaping. The FilterCourseShortcode::render() handler does not apply shortcode_atts() filtering, so raw user attributes flow directly through do_action('learn-press/filter-courses/layout', $data) into the template. 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress LearnPress 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
thimpress LearnPress – WordPress LMS Plugin for Create and Sell Online Courses是thimpress公司的WordPress LMS插件。 WordPress LearnPress 4.4.0及之前版本存在跨站脚本漏洞，该漏洞源于对'class_wrapper_form'短代码属性输入清理和输出转义不足，可能导致拥有贡献者级别及以上权限的攻击者注入存储型跨站脚本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
thimpress LearnPress – WordPress LMS Plugin for Create and Sell Online Courses 0 ~ 4.4.0 -

II. Public POCs for CVE-2026-12732

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III. Intelligence Information for CVE-2026-12732

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Patches & Fixes for CVE-2026-12732 (1)

Other References for CVE-2026-12732 (1)

IV. Related Vulnerabilities

Same product: LearnPress – WordPress LMS Plugin for Create and Sell Online Courses
Same vendor: thimpress
Same weakness: CWE-79

V. Comments for CVE-2026-12732

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