CVE-2026-39375: XSS

Description

Frappe Learning Management System (LMS) is a learning system that helps users structure their content. Prior to version 2.52.0, an authenticated user with a course editing role can inject malicious JavaScript through meta tag fields in the Course Management module. The values are stored without adequate HTML sanitization and are not safely escaped when rendered, allowing stored cross-site scripting. This issue is fixed in version 2.52.0.

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Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

References

Other References

https://github.com/frappe/lms/commit/cd6aca25f7d28425660720db4fdb920727edb670 https://github.com/frappe/lms/commit/f244a6c9ff6e0b104fec48b2d97af4cc09896b60 https://github.com/frappe/lms/security/advisories/GHSA-9fqj-95wr-6hm6 https://github.com/frappe/lms/tree/v2.52.0

Frequently Asked Questions

What is CVE-2026-39375? +

Frappe Learning Management System (LMS) is a learning system that helps users structure their content. Prior to version 2.52.0, an authenticated user with a course editing role can inject malicious JavaScript through meta tag fields in the Course Management module. The values are stored without adequate HTML sanitization and are not safely escaped when rendered, allowing stored cross-site scripting. This issue is fixed in version 2.52.0.

How do I check if I'm vulnerable to CVE-2026-39375? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-39375