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Vulnerability details: VCID-37m5-8u44-juhf
Vulnerability ID VCID-37m5-8u44-juhf
Aliases CVE-2020-25698
GHSA-vxhx-gmhm-623c
Summary Improper Access Control in moodle Users' enrollment capabilities were not being sufficiently checked in Moodle when they are restored into an existing course. This could lead to them unenrolling users without having permission to do so. Versions affected: 3.5 to 3.5.14, 3.7 to 3.7.8, 3.8 to 3.8.5, 3.9 to 3.9.2 and earlier unsupported versions. Fixed in 3.9.3, 3.8.6, 3.7.9, 3.5.15, and 3.10.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-284 Improper Access Control
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 0.00701 https://api.first.org/data/v1/epss?cve=CVE-2020-25698
epss 0.00701 https://api.first.org/data/v1/epss?cve=CVE-2020-25698
cvssv3.1 7.5 https://bugzilla.redhat.com/show_bug.cgi?id=1895419
generic_textual HIGH https://bugzilla.redhat.com/show_bug.cgi?id=1895419
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-vxhx-gmhm-623c
cvssv3.1 7.5 https://github.com/moodle/moodle/commit/c8ac07fb50fa92eee1d574823fbda09e1b309a63
generic_textual HIGH https://github.com/moodle/moodle/commit/c8ac07fb50fa92eee1d574823fbda09e1b309a63
cvssv3.1 7.5 https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-67837
generic_textual HIGH https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-67837
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4NNFCHPPHRJNJROIX6SYMHOC6HMKP3GU
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4NNFCHPPHRJNJROIX6SYMHOC6HMKP3GU
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B55KXBVAT45MDASJ3EK6VIGQOYGJ4NH6
generic_textual HIGH https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B55KXBVAT45MDASJ3EK6VIGQOYGJ4NH6
cvssv3.1 7.5 https://moodle.org/mod/forum/discuss.php?d=413935
generic_textual HIGH https://moodle.org/mod/forum/discuss.php?d=413935
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2020-25698
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2020-25698
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2020-25698
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2020-25698
https://bugzilla.redhat.com/show_bug.cgi?id=1895419
https://github.com/moodle/moodle/commit/c8ac07fb50fa92eee1d574823fbda09e1b309a63
https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-67837
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4NNFCHPPHRJNJROIX6SYMHOC6HMKP3GU/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B55KXBVAT45MDASJ3EK6VIGQOYGJ4NH6/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4NNFCHPPHRJNJROIX6SYMHOC6HMKP3GU
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4NNFCHPPHRJNJROIX6SYMHOC6HMKP3GU/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B55KXBVAT45MDASJ3EK6VIGQOYGJ4NH6
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B55KXBVAT45MDASJ3EK6VIGQOYGJ4NH6/
https://moodle.org/mod/forum/discuss.php?d=413935
https://nvd.nist.gov/vuln/detail/CVE-2020-25698
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:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
GHSA-vxhx-gmhm-623c https://github.com/advisories/GHSA-vxhx-gmhm-623c
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://bugzilla.redhat.com/show_bug.cgi?id=1895419
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:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/moodle/moodle/commit/c8ac07fb50fa92eee1d574823fbda09e1b309a63
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:N/UI:N/S:U/C:N/I:H/A:N Found at https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-67837
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:N/UI:N/S:U/C:N/I:H/A:N Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4NNFCHPPHRJNJROIX6SYMHOC6HMKP3GU
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:N/UI:N/S:U/C:N/I:H/A:N Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B55KXBVAT45MDASJ3EK6VIGQOYGJ4NH6
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:N/UI:N/S:U/C:N/I:H/A:N Found at https://moodle.org/mod/forum/discuss.php?d=413935
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: AV:N/AC:L/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-25698
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-25698
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 0.71036
EPSS Score 0.00701
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:19:04.433544+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-vxhx-gmhm-623c/GHSA-vxhx-gmhm-623c.json 36.1.3