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Vulnerability details: VCID-zd4r-bn1p-27a5
Vulnerability ID VCID-zd4r-bn1p-27a5
Aliases CVE-2026-26045
GHSA-ggxq-2mg9-8966
Summary Moodle has a Remote Code Execution risk via file restore 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.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-94 Improper Control of Generation of Code ('Code Injection')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 7.2 https://access.redhat.com/security/cve/CVE-2026-26045
generic_textual HIGH https://access.redhat.com/security/cve/CVE-2026-26045
ssvc Track https://access.redhat.com/security/cve/CVE-2026-26045
epss 0.00113 https://api.first.org/data/v1/epss?cve=CVE-2026-26045
cvssv3.1 7.2 https://bugzilla.redhat.com/show_bug.cgi?id=2440901
generic_textual HIGH https://bugzilla.redhat.com/show_bug.cgi?id=2440901
ssvc Track https://bugzilla.redhat.com/show_bug.cgi?id=2440901
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-ggxq-2mg9-8966
cvssv3.1 7.2 https://github.com/moodle/moodle
generic_textual HIGH https://github.com/moodle/moodle
cvssv3.1 7.2 https://github.com/moodle/moodle/commit/566054ba11f609a6d48d09b32e85d435d49927da
generic_textual HIGH https://github.com/moodle/moodle/commit/566054ba11f609a6d48d09b32e85d435d49927da
cvssv3.1 7.2 https://moodle.org/mod/forum/discuss.php?d=473314
generic_textual HIGH https://moodle.org/mod/forum/discuss.php?d=473314
cvssv3.1 7.2 https://nvd.nist.gov/vuln/detail/CVE-2026-26045
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2026-26045
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-26045
https://bugzilla.redhat.com/show_bug.cgi?id=2440901
https://github.com/moodle/moodle
https://github.com/moodle/moodle/commit/566054ba11f609a6d48d09b32e85d435d49927da
https://moodle.org/mod/forum/discuss.php?d=473314
CVE-2026-26045 https://access.redhat.com/security/cve/CVE-2026-26045
CVE-2026-26045 https://nvd.nist.gov/vuln/detail/CVE-2026-26045
GHSA-ggxq-2mg9-8966 https://github.com/advisories/GHSA-ggxq-2mg9-8966
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/security/cve/CVE-2026-26045
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-02-24T04:56:33Z/ Found at https://access.redhat.com/security/cve/CVE-2026-26045
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://bugzilla.redhat.com/show_bug.cgi?id=2440901
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-02-24T04:56:33Z/ Found at https://bugzilla.redhat.com/show_bug.cgi?id=2440901
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/moodle/moodle
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/moodle/moodle/commit/566054ba11f609a6d48d09b32e85d435d49927da
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://moodle.org/mod/forum/discuss.php?d=473314
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2026-26045
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.29642
EPSS Score 0.00113
Published At May 30, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-30T21:06:45.458194+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/moodle/moodle/CVE-2026-26045.yml 38.6.0