Tutor LMS – eLearning and online course solution: Cross-site scripting

Tutor LMS – eLearning and online course solution is affected by cross-site scripting. Exploitation requires an authenticated author account. Injected script can execute in the affected site's origin when the vulnerable output is viewed. The published affected range is <= 3.9.13.

CVE / CNA score 6.4 CVSS 3.1 · security@wordfence.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: Tutor LMS – eLearning and online course solution
Plugin slug: tutor
Affected: <= 3.9.13
Safe version: See mitigation notes
Published: Jul 01, 2026
Weakness: CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Jul 01, 2026 and is one of 46 known issues for this plugin.

What to do

Update, patch or deactivate.

No fixed release is identified. Update Tutor LMS – eLearning and online course solution when a release after 3.9.13 becomes available; until then, disable and remove it when the site's risk warrants. The official upstream changelog lists version 4.0.5, which is newer than the published affected range. Its changelog does not clearly confirm this specific fix, so it is not counted as a known-safe release.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Lesson Attachment Title in all versions up to, and including, 3.9.13 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References

Primary and upstream sources

Data attribution: This product uses the NVD API but is not endorsed or certified by the NVD.

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