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Vulnerability details: VCID-3tq7-edtr-gybz
Vulnerability ID VCID-3tq7-edtr-gybz
Aliases CVE-2018-16854
GHSA-xj5f-qv37-r9jc
Summary Moodle Login CSRF vulnerability in login form A flaw was found in moodle versions 3.5 to 3.5.2, 3.4 to 3.4.5, 3.3 to 3.3.8, 3.1 to 3.1.14 and earlier. The login form is not protected by a token to prevent login cross-site request forgery. Fixed versions include 3.6, 3.5.3, 3.4.6, 3.3.9 and 3.1.15.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-352 Cross-Site Request Forgery (CSRF)
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 8.8 http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-63183
generic_textual HIGH http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-63183
epss 0.01768 https://api.first.org/data/v1/epss?cve=CVE-2018-16854
epss 0.01768 https://api.first.org/data/v1/epss?cve=CVE-2018-16854
cvssv3.1 8.8 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16854
generic_textual HIGH https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16854
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-xj5f-qv37-r9jc
cvssv3.1 8.8 https://github.com/moodle/moodle
generic_textual HIGH https://github.com/moodle/moodle
cvssv3.1 8.8 https://moodle.org/mod/forum/discuss.php?d=378731
generic_textual HIGH https://moodle.org/mod/forum/discuss.php?d=378731
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2018-16854
cvssv3 8.8 https://nvd.nist.gov/vuln/detail/CVE-2018-16854
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2018-16854
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2018-16854
cvssv3.1 8.8 http://www.securityfocus.com/bid/106017
generic_textual HIGH http://www.securityfocus.com/bid/106017
cvssv3.1 8.8 http://www.securitytracker.com/id/1042154
generic_textual HIGH http://www.securitytracker.com/id/1042154
Reference id Reference type URL
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-63183
https://api.first.org/data/v1/epss?cve=CVE-2018-16854
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16854
https://github.com/moodle/moodle
https://moodle.org/mod/forum/discuss.php?d=378731
https://nvd.nist.gov/vuln/detail/CVE-2018-16854
http://www.securityfocus.com/bid/106017
http://www.securitytracker.com/id/1042154
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-xj5f-qv37-r9jc https://github.com/advisories/GHSA-xj5f-qv37-r9jc
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-63183
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:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16854
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:3.0/AV:N/AC:L/PR:N/UI:R/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:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://moodle.org/mod/forum/discuss.php?d=378731
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:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-16854
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:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-16854
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:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-16854
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:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at http://www.securityfocus.com/bid/106017
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:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at http://www.securitytracker.com/id/1042154
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 0.81782
EPSS Score 0.01768
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:29:03.192001+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-xj5f-qv37-r9jc/GHSA-xj5f-qv37-r9jc.json 36.1.3