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Vulnerability details: VCID-r93d-c8y4-kufa
Vulnerability ID VCID-r93d-c8y4-kufa
Aliases CVE-2021-40695
GHSA-gp4w-f57r-9rx3
Summary Moodle Exposure of Sensitive Information to an Unauthorized Actor It was possible for a student to view their quiz grade before it had been released, using a quiz web service.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
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
epss 0.00206 https://api.first.org/data/v1/epss?cve=CVE-2021-40695
epss 0.00206 https://api.first.org/data/v1/epss?cve=CVE-2021-40695
cvssv3.1 4.3 https://bugzilla.redhat.com/show_bug.cgi?id=2043424
generic_textual MODERATE https://bugzilla.redhat.com/show_bug.cgi?id=2043424
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-gp4w-f57r-9rx3
cvssv3.1 4.3 https://github.com/moodle/moodle
generic_textual MODERATE https://github.com/moodle/moodle
cvssv3.1 4.3 https://nvd.nist.gov/vuln/detail/CVE-2021-40695
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2021-40695
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2021-40695
https://bugzilla.redhat.com/show_bug.cgi?id=2043424
https://github.com/moodle/moodle
https://nvd.nist.gov/vuln/detail/CVE-2021-40695
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
GHSA-gp4w-f57r-9rx3 https://github.com/advisories/GHSA-gp4w-f57r-9rx3
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Found at https://bugzilla.redhat.com/show_bug.cgi?id=2043424
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:N/S:U/C:L/I:N/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:N/S:U/C:L/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-40695
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 0.43042
EPSS Score 0.00206
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:23:09.544913+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/09/GHSA-gp4w-f57r-9rx3/GHSA-gp4w-f57r-9rx3.json 36.1.3