CVE-2023-4805: Tutor LMS < 2.3.0 - Subscriber+ Stored Cross-Site Scripting

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-10-16 · updated 2026-06-17

Description

The Tutor LMS WordPress plugin before 2.3.0 does not sanitise and escape some of its settings, which could allow users such as subscriber to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

Affected products

themeum Tutor LMS – eLearning and online course solution: before 2.3.0 — fixed in 2.3.0

How to fix

Upgrade to a fixed version: themeum Tutor LMS – eLearning and online course solution 2.3.0. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/1049e940-49b1-4236-bea2-c636f35c5647
https://wpscan.com/vulnerability/1049e940-49b1-4236-bea2-c636f35c5647

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