What is CVE-2026-82847?

CVE-2026-82847 is a medium-severity vulnerability in Masteriyo Lms, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-09-12.

How severe is CVE-2026-82847?

Medium severity. CVSS v3 base score is 6.8 out of 10.

XSS in Masteriyo Lms

CVE-2026-82847

The Masteriyo LMS WordPress plugin before 3.4.1 does not sanitise and escape one of its course fields before outputting it back in the course editor, allowing users with the instructor role to perform Stored Cross-Site Scripting attacks against higher privileged users such as administrators.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H.

Affected products

Unknown Masteriyo Lms

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-82847?: CVE-2026-82847 is a medium-severity vulnerability in Masteriyo Lms, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-09-12.
How severe is CVE-2026-82847?: Medium severity. CVSS v3 base score is 6.8 out of 10.