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Vulnerability details: VCID-as9s-9911-9fe9
Vulnerability ID VCID-as9s-9911-9fe9
Aliases CVE-2023-5544
GHSA-j5xf-gv89-g422
Summary Moodle Cross-site Scripting vulnerability Wiki comments required additional sanitizing and access restrictions to prevent a stored XSS risk and potential IDOR risk.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-639 Authorization Bypass Through User-Controlled Key
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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 5.4 http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-79509
generic_textual MODERATE http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-79509
epss 0.0013 https://api.first.org/data/v1/epss?cve=CVE-2023-5544
epss 0.0013 https://api.first.org/data/v1/epss?cve=CVE-2023-5544
cvssv3.1 5.4 https://bugzilla.redhat.com/show_bug.cgi?id=2243443
generic_textual MODERATE https://bugzilla.redhat.com/show_bug.cgi?id=2243443
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-j5xf-gv89-g422
cvssv3.1 5.4 https://github.com/moodle/moodle
generic_textual MODERATE https://github.com/moodle/moodle
cvssv3.1 5.4 https://github.com/moodle/moodle/commit/5fec728be9df3c9fc282cd0897c73ca5cfcfea5f
generic_textual MODERATE https://github.com/moodle/moodle/commit/5fec728be9df3c9fc282cd0897c73ca5cfcfea5f
cvssv3.1 5.4 https://moodle.org/mod/forum/discuss.php?d=451585
generic_textual MODERATE https://moodle.org/mod/forum/discuss.php?d=451585
cvssv3.1 5.4 https://nvd.nist.gov/vuln/detail/CVE-2023-5544
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2023-5544
Reference id Reference type URL
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-79509
https://api.first.org/data/v1/epss?cve=CVE-2023-5544
https://bugzilla.redhat.com/show_bug.cgi?id=2243443
https://github.com/moodle/moodle
https://github.com/moodle/moodle/commit/5fec728be9df3c9fc282cd0897c73ca5cfcfea5f
https://moodle.org/mod/forum/discuss.php?d=451585
https://nvd.nist.gov/vuln/detail/CVE-2023-5544
GHSA-j5xf-gv89-g422 https://github.com/advisories/GHSA-j5xf-gv89-g422
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Found at http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-79509
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

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none

required

unchanged

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low

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Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Found at https://bugzilla.redhat.com/show_bug.cgi?id=2243443
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

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high

low

none

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low

none

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low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N 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:L/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/moodle/moodle/commit/5fec728be9df3c9fc282cd0897c73ca5cfcfea5f
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:L/UI:R/S:C/C:L/I:L/A:N Found at https://moodle.org/mod/forum/discuss.php?d=451585
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:L/UI:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2023-5544
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 0.33524
EPSS Score 0.0013
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:15:26.722716+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/11/GHSA-j5xf-gv89-g422/GHSA-j5xf-gv89-g422.json 36.1.3