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Vulnerability details: VCID-rcwf-j578-zkcm
Vulnerability ID VCID-rcwf-j578-zkcm
Aliases CVE-2023-5539
GHSA-3xxm-3g3c-w579
Summary Moodle Code Injection vulnerability A remote code execution risk was identified in the Lesson activity. By default this was only available to teachers and managers.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-94 Improper Control of Generation of Code ('Code Injection')
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 4.7 http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-79408
generic_textual MODERATE http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-79408
ssvc Track http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-79408
epss 0.01832 https://api.first.org/data/v1/epss?cve=CVE-2023-5539
epss 0.01832 https://api.first.org/data/v1/epss?cve=CVE-2023-5539
cvssv3.1 4.7 https://bugzilla.redhat.com/show_bug.cgi?id=2243352
generic_textual MODERATE https://bugzilla.redhat.com/show_bug.cgi?id=2243352
ssvc Track https://bugzilla.redhat.com/show_bug.cgi?id=2243352
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-3xxm-3g3c-w579
cvssv3.1 4.7 https://github.com/moodle/moodle
generic_textual MODERATE https://github.com/moodle/moodle
cvssv3.1 4.7 https://github.com/moodle/moodle/commit/ba974a4add981743b5a37c5bcc4714c62f6052ce
generic_textual MODERATE https://github.com/moodle/moodle/commit/ba974a4add981743b5a37c5bcc4714c62f6052ce
cvssv3.1 4.7 https://moodle.org/mod/forum/discuss.php?d=451580
generic_textual MODERATE https://moodle.org/mod/forum/discuss.php?d=451580
ssvc Track https://moodle.org/mod/forum/discuss.php?d=451580
cvssv3.1 4.7 https://nvd.nist.gov/vuln/detail/CVE-2023-5539
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2023-5539
Reference id Reference type URL
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-79408
https://api.first.org/data/v1/epss?cve=CVE-2023-5539
https://bugzilla.redhat.com/show_bug.cgi?id=2243352
https://github.com/moodle/moodle
https://github.com/moodle/moodle/commit/ba974a4add981743b5a37c5bcc4714c62f6052ce
https://moodle.org/mod/forum/discuss.php?d=451580
https://nvd.nist.gov/vuln/detail/CVE-2023-5539
GHSA-3xxm-3g3c-w579 https://github.com/advisories/GHSA-3xxm-3g3c-w579
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L Found at http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-79408
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/2024-09-03T18:23:49Z/ Found at http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-79408
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L Found at https://bugzilla.redhat.com/show_bug.cgi?id=2243352
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/2024-09-03T18:23:49Z/ Found at https://bugzilla.redhat.com/show_bug.cgi?id=2243352
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L 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:L/I:L/A:L Found at https://github.com/moodle/moodle/commit/ba974a4add981743b5a37c5bcc4714c62f6052ce
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:L/I:L/A:L Found at https://moodle.org/mod/forum/discuss.php?d=451580
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/2024-09-03T18:23:49Z/ Found at https://moodle.org/mod/forum/discuss.php?d=451580
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L Found at https://nvd.nist.gov/vuln/detail/CVE-2023-5539
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 0.82081
EPSS Score 0.01832
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:15:20.985420+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/11/GHSA-3xxm-3g3c-w579/GHSA-3xxm-3g3c-w579.json 36.1.3