IsItPatchedInstant security status for any software version
← All products

CVE-2023-5539

MEDIUM severity · CVSS 4.7 · Code injection
4.7CVSS MEDIUM

Summary

A remote code execution risk was identified in the Lesson activity. By default this was only available to teachers and managers.

Impact & exploitability

Attack vectorNetwork
Attack complexityLow
Privileges requiredHigh
User interactionNone
Confidentiality impactLow
Integrity impactLow
Availability impactLow
Exploit probability (EPSS)2%

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-79408 ↗

Last checked: Wed, 10 Jun 2026 22:18:30 UTC