CVE-2026-12230
Medium
Description
The LearnPress – WordPress LMS Plugin for Create and Sell Online Courses plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'layout_custom_css' parameter in all versions up to, and including, 4.3.9.1 due to insufficient input sanitization and output 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.
SeverityMedium
CVSS6.4
Exploit probability—
ProductLearnPress – WordPress LMS Plugin for Create and Sell Online Courses
PublishedSep 8, 2026
First seenSep 8, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| thimpress LearnPress – WordPress LMS Plugin for Create and Sell Online Courses | v ≤ 4.3.9.1 | — |
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