CVE-2021-24308 EXPLOIT
5.4
MEDIUM · CVSS 3.1 · EPSS 3.2% (pctl 88)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 5.4 (MEDIUM, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| EPSS | 3.25% — more likely to be exploited than 88% of all CVEs |
| Weakness | CWE-79 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2021-05-24 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| lifterlms | lifterlms |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | WordPress Plugin LifterLMS 4.21.0 - Stored Cross-Site Scripting (XSS) | 2021-05-28 |
References
- http://packetstormsecurity.com/files/162856/WordPress-LifterLMS-4.21.0-Cross-Site-Scripting.html
- https://github.com/gocodebox/lifterlms/releases/tag/4.21.1
- https://wpscan.com/vulnerability/f29f68a5-6575-441d-98c9-867145f2b082
- http://packetstormsecurity.com/files/162856/WordPress-LifterLMS-4.21.0-Cross-Site-Scripting.html
- https://github.com/gocodebox/lifterlms/releases/tag/4.21.1
- https://wpscan.com/vulnerability/f29f68a5-6575-441d-98c9-867145f2b082
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