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Fencer Vulns
high 7.2

CVE-2026-26045 json

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

published 2026-02-21 8 mo ago modified 2026-09-08 2 mo ago also BIT-moodle-2026-26045 , EUVD-2026-7390 , GHSA-ggxq-2mg9-8966

cvss
7.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

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.

Patch / fix

  • packagist moodle/moodle 4.5.9, 5.0.5, 5.1.2
  • bitnami moodle 4.5.9, 5.0.5, 5.1.2
  • moodle moodle 4.5.9, 5.0.5, 5.1.2

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-26045 updated cvss 7.2

moodle: Moodle: Improper Validation in File Restore Functionality Leading to Remote Code Execution

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
8 mo ago

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
packagist moodle/moodle
>=5.1.0-beta, <5.1.2
>=5.0.0-beta, <5.0.5
<4.5.9
5.1.2
5.0.5
4.5.9
bitnami moodle
<4.5.9
>=5.0.0, <5.0.5
>=5.1.0, <5.1.2
4.5.9
5.0.5
5.1.2

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.