vulnerability
WordPress Plugin: cluevo-lms: CVE-2021-25029: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 3 | (AV:N/AC:M/Au:S/C:N/I:P/A:N) | Jan 10, 2022 | May 15, 2025 | Apr 30, 2026 |
Severity
3
CVSS
(AV:N/AC:M/Au:S/C:N/I:P/A:N)
Published
Jan 10, 2022
Added
May 15, 2025
Modified
Apr 30, 2026
Description
The CLUEVO LMS, E-Learning Platform WordPress plugin before 1.8.1 does not sanitise and escape Course's module, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed
The CLUEVO E-Learning Platform plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.8.0 due to insufficient input sanitization and output escaping in the Course's module. This makes it possible for high privilege attackers, even when the unfiltered_html capability is disallowed, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
The CLUEVO E-Learning Platform plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.8.0 due to insufficient input sanitization and output escaping in the Course's module. This makes it possible for high privilege attackers, even when the unfiltered_html capability is disallowed, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Solution
cluevo-lms-plugin-cve-2021-25029
References
Rapid7 Labs
2026 Global Threat Landscape Report
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