What’s Vulnerable › Vulnerabilities
CVE-2026-12732: LearnPress <= 4.4.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'class_wrapper_form' Shortcode Attribute
- Severity: medium (CVSS 6.4 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: 2026-07-01 · updated 2026-07-01
- Weakness: CWE-79
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.
Affected products
References
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.0/inc/Shortcodes/Course/FilterCourseShortcode.php#L29
- https://plugins.trac.wordpress.org/browser/learnpress/tags/4.4.0/inc/TemplateHooks/Course/FilterCourseTemplate.php#L98
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3587186%40learnpress&new=3587186%40learnpress&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/09c8db69-60fa-4087-9096-5d34ce44f616?source=cve
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