CVE-2026-26045 HIGH

CVE-2026-26045: Moodle: moodle: improper validation in file restore functionality leading to remote code execution

Weakness CWE-94 · Code injection
Published February 21, 2026
Last update February 26, 2026

CVSS base score

7.2/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A flaw was identified in Moodle’s backup restore functionality where specially crafted backup files were not properly validated during processing. If a malicious backup file is restored, it could lead to unintended execution of server-side code. Since restore capabilities are typically available to privileged users, exploitation requires authenticated access. Successful exploitation could result in full compromise of the Moodle server.

Key dates

02Disclosure timeline

February 21, 2026 CVE published
February 26, 2026 Record updated