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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
7.2HIGH
NVD MITRE
EPSS Score
0.6%
Top 56.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

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

moodle
oss-project·AUaka jmol plugin, lms
moodleOn-premWeb App
Web & CMS Plugins / cms-core
Packagist
package-ecosystem
moodle/moodleWeb App
Web & CMS Plugins / cms-core
ООО «Ред Софт»
commercial·RUaka red soft
РЕД ОСOn-premOS
Operating Systems / linux-distro
Мартин Догиамас
individual-dev·AUaka martin dogiamas
MoodleOn-premWeb App
Web & CMS Plugins
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2026-26045?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

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://nvd.nist.gov/vuln/detail/CVE-2026-26045
nvd.nist.gov
and 9 more references View all →

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