PT-2026-31080 · Thimpress · Learnpress – Wordpress Lms Plugin For Create/Sell Online Courses

Djaidja Moundjid · Published 2026-04-08 · Updated 2026-04-08 · CVE-2026-4333

Mitre

CVSS v3.1

6.4

Medium

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'skin' attribute of the learn press courses shortcode in all versions up to and including 4.3.3. This is due to insufficient input sanitization and output escaping on the 'skin' shortcode attribute. The attribute value is used directly in an sprintf() call that generates HTML (class attribute and data-layout attribute) without any esc attr() escaping. 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.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-4333

Affected Products

Learnpress – Wordpress Lms Plugin For Create/Sell Online Courses

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-4333 · Security Note
• https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.2.8/inc/Shortcodes/Courses/ListCoursesShortcode.php#L76 · Note
• https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.2.8/inc/Shortcodes/Courses/ListCoursesShortcode.php#L55 · Note
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3494377%40learnpress&new=3494377%40learnpress&sfp_email=&sfph_mail= · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/15fb0a26-e415-4ccb-b83d-d8f7b36bce66?source=cve · Note
• https://plugins.trac.wordpress.org/browser/learnpress/trunk/inc/Shortcodes/Courses/ListCoursesShortcode.php#L55 · Note
• https://plugins.trac.wordpress.org/browser/learnpress/trunk/inc/Shortcodes/Courses/ListCoursesShortcode.php#L76 · Note