CVE-2021-24740 Tutor LMS < 1.9.9 - Multiple Admin+ Stored Cross-Site Scripting

What is CVE-2021-24740?

CVE-2021-24740 is a medium-severity cross-site scripting vulnerability in Unknown Tutor LMS – eLearning and online course solution, published on 18 Oct 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

The Tutor LMS WordPress plugin before 1.9.9 does not escape some of its settings before outputting them in attributes, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

Weakness: CWE-79

Which versions are affected by CVE-2021-24740?

It affects 1 product.

Products include Themeum Tutor Lms.

How do I fix CVE-2021-24740?

No fix has been published for CVE-2021-24740 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2021-24740 being exploited?

There is no known exploitation of CVE-2021-24740 in the wild and no public exploit code.

Other vulnerabilities in Unknown Tutor LMS – eLearning and online course solution

• CVE-2024-4223 Tutor LMS <= 2.7.0 - Missing Authorization Critical 9.8
• CVE-2024-4318 Tutor LMS <= 2.7.0 - Authenticated (Instructor+) SQL Injection High 8.8
• CVE-2024-4351 Tutor LMS Pro <= 2.7.0 - Missing Authorization to Privilege Escalation High 8.8
• CVE-2024-4352 Tutor LMS Pro <= 2.7.0 - Missing Authorization to SQL Injection High 8.8
• CVE-2024-1751 Tutor LMS – eLearning and online course solution <= 2.6.1 - Authenticated (Subscriber+) SQL Injection High 8.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-jg5m-x833-wjc6.