CVE-2026-62107 Masteriyo - LMS - Remote Code Execution

Masteriyo - LMS <= 3.4.0 contains an unauthenticated PHP object injection caused by improper handling of user input, letting unauthenticated attackers execute arbitrary code remotely, exploit requires no authentication.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.52% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
11 September 2026
Updated
15 October 2026
Weakness
CWE-502

Vendor fix

Update to a version later than 3.4.0 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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