CVE-2026-81338: medium-severity vulnerability in MasterStudy LMS WordPress Plugin
MasterStudy LMS < 3.7.50 - Subscriber+ Stored HTML Injection via Course Discussions
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 4.6epss 0.1%
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not properly sanitise and restrict HTML in user-submitted content before storing it and rendering it to other users, allowing users with subscriber-level accounts and above to perform stored HTML injection, such as embedding iframes, that can be leveraged for phishing and content spoofing against other users viewing the content.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Affected products
Unknown · MasterStudy LMS WordPress Pluginpublic PoCs found — 1
cve_referencewpscan.com/vulnerability/e8494c71-fb0f-4ab9-a8b7-8db3745a2d9b/unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — MasterStudy LMS WordPress Plugin
In the same product, most dangerous first.
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