CVE-2021-24308

Name: CVE-2021-24308
Creator: NVD / NIST
Published: 2021-05-24T11:15:08.387+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 3.25%

Last modified Jun 17, 2026

CVE-2021-24308 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. The 'State' field of the Edit profile page of the LMS by LifterLMS – Online Course, Membership & Learning Management System Plugin for WordPress plugin before 4.21.1 is not properly sanitised when output in the About section of the profile page, leading to a stored Cross-Site Scripting issue. This could allow low privilege users (such as students) to elevate their privilege via an XSS attack when an admin will view their profile.. EPSS estimates a 3.25% chance of exploitation in the next 30 days.

Description

The 'State' field of the Edit profile page of the LMS by LifterLMS – Online Course, Membership & Learning Management System Plugin for WordPress plugin before 4.21.1 is not properly sanitised when output in the About section of the profile page, leading to a stored Cross-Site Scripting issue. This could allow low privilege users (such as students) to elevate their privilege via an XSS attack when an admin will view their profile.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

3.25%

86.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Lifterlms	Lifterlms	< 4.21.1

References

http://packetstormsecurity.com/files/162856/WordPress-LifterLMS-4.21.0-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
https://github.com/gocodebox/lifterlms/releases/tag/4.21.1Release Notes, Third Party Advisory
https://wpscan.com/vulnerability/f29f68a5-6575-441d-98c9-867145f2b082Exploit, Third Party Advisory
http://packetstormsecurity.com/files/162856/WordPress-LifterLMS-4.21.0-Cross-Site-Scripting.htmlExploit, Third Party Advisory, VDB Entry
https://github.com/gocodebox/lifterlms/releases/tag/4.21.1Release Notes, Third Party Advisory
https://wpscan.com/vulnerability/f29f68a5-6575-441d-98c9-867145f2b082Exploit, Third Party Advisory

Timeline

Published: May 24, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24308?

How severe is CVE-2021-24308?

CVE-2021-24308 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 3.25% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24308?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-24308?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST