CVE-2026-26045
HIGHMoodle 4.5.0-4.5.8 and 5.1.0-beta-5.1.1 - Authenticated Remote Code Execution via Backup Restore
Title source: llmDescription
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.
References (2)
Core 2
Core References
Vendor Advisory vdb-entry
x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-26045
Issue Tracking issue-tracking
x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2440901
Scores
CVSS v3
7.2
EPSS
0.0011
EPSS Percentile
29.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-94
Status
published
Products (2)
moodle/moodle
< 4.5.9
moodle/moodle
5.1.0-beta - 5.1.2Packagist
Published
Feb 21, 2026
Tracked Since
Feb 21, 2026