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CVE-2026-26045

Moodle: moodle: improper validation in file restore functionality leading to remote code execution

Published: Feb 21, 2026Updated: Feb 26, 2026 Sources: CVE List NVD GHSA BDUCWE-94
NVD MITRE
7.2CVSSHIGH
EPSS Score
0.6%
Top 58.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-94

Affected Products

РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
MoodleМартин ДогиамасWeb & CMS Plugins
moodlemoodle
On-premWeb App
Web & CMS Plugins / cms-core
moodle/moodlePackagist
Web App
Web & CMS Plugins / cms-core
ооо «ред софт»commercialRUOperating Systemsaka red soft
мартин догиамасindividual-devAUWeb & CMS Pluginsaka martin dogiamas
moodleoss-projectAUWeb & CMS Pluginsaka jmol plugin, lms
packagistpackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
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References

https://access.redhat.com/security/cve/CVE-2026-26045
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2440901
bugzilla.redhat.com
https://github.com/moodle/moodle
github.com
and 9 more references View all →

Timeline

Published
Feb 21, 2026
Last Updated
Feb 26, 2026

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