Search for vulnerabilities
Vulnerability details: VCID-pz62-p4jf-efb5
Vulnerability ID VCID-pz62-p4jf-efb5
Aliases CVE-2019-3849
GHSA-5wg9-5w3f-hxmh
Summary Moodle Users could elevate their role when accessing the LTI tool on a provider site A vulnerability was found in moodle before versions 3.6.3, 3.5.5 and 3.4.8. Users could assign themselves an escalated role within courses or content accessed via LTI, by modifying the request to the LTI publisher site.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-269 Improper Privilege Management
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 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2019-3849
epss 0.00374 https://api.first.org/data/v1/epss?cve=CVE-2019-3849
cvssv3.1 8.8 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3849
generic_textual HIGH https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3849
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-5wg9-5w3f-hxmh
cvssv3.1 8.8 https://github.com/moodle/moodle
generic_textual HIGH https://github.com/moodle/moodle
cvssv3.1 8.8 https://github.com/moodle/moodle/commit/427463a52574e4b3bcbe1c65c49066438770641e
generic_textual HIGH https://github.com/moodle/moodle/commit/427463a52574e4b3bcbe1c65c49066438770641e
cvssv3.1 8.8 https://github.com/moodle/moodle/commit/430f685834cef190bdf58afabe79e765d596890d
generic_textual HIGH https://github.com/moodle/moodle/commit/430f685834cef190bdf58afabe79e765d596890d
cvssv3.1 8.8 https://github.com/moodle/moodle/commit/723d1a747555b795ed53a0fad01da455797bb78f
generic_textual HIGH https://github.com/moodle/moodle/commit/723d1a747555b795ed53a0fad01da455797bb78f
cvssv3.1 8.8 https://github.com/moodle/moodle/commit/898d5d05a0c3ae6795db0241bf3cb5951213d45c
generic_textual HIGH https://github.com/moodle/moodle/commit/898d5d05a0c3ae6795db0241bf3cb5951213d45c
cvssv3.1 8.8 https://github.com/moodle/moodle/commit/b77dcd23d8e39265b5c096f0d947764c02d832c8
generic_textual HIGH https://github.com/moodle/moodle/commit/b77dcd23d8e39265b5c096f0d947764c02d832c8
cvssv3.1 8.8 https://github.com/moodle/moodle/commit/cd3060d941a051931eb2613b25bafb0108665895
generic_textual HIGH https://github.com/moodle/moodle/commit/cd3060d941a051931eb2613b25bafb0108665895
cvssv3.1 8.8 https://github.com/moodle/moodle/commit/fba7dcd90abd45210d782a79c6e25bb3840c7438
generic_textual HIGH https://github.com/moodle/moodle/commit/fba7dcd90abd45210d782a79c6e25bb3840c7438
cvssv3.1 8.8 https://moodle.org/mod/forum/discuss.php?d=384012#p1547744
generic_textual HIGH https://moodle.org/mod/forum/discuss.php?d=384012#p1547744
cvssv2 6.5 https://nvd.nist.gov/vuln/detail/CVE-2019-3849
cvssv3.1 8.8 https://nvd.nist.gov/vuln/detail/CVE-2019-3849
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2019-3849
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2019-3849
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3849
https://github.com/moodle/moodle
https://github.com/moodle/moodle/commit/427463a52574e4b3bcbe1c65c49066438770641e
https://github.com/moodle/moodle/commit/430f685834cef190bdf58afabe79e765d596890d
https://github.com/moodle/moodle/commit/723d1a747555b795ed53a0fad01da455797bb78f
https://github.com/moodle/moodle/commit/898d5d05a0c3ae6795db0241bf3cb5951213d45c
https://github.com/moodle/moodle/commit/b77dcd23d8e39265b5c096f0d947764c02d832c8
https://github.com/moodle/moodle/commit/cd3060d941a051931eb2613b25bafb0108665895
https://github.com/moodle/moodle/commit/fba7dcd90abd45210d782a79c6e25bb3840c7438
https://moodle.org/mod/forum/discuss.php?d=384012#p1547744
https://nvd.nist.gov/vuln/detail/CVE-2019-3849
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-5wg9-5w3f-hxmh https://github.com/advisories/GHSA-5wg9-5w3f-hxmh
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3849
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: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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/moodle/moodle/commit/427463a52574e4b3bcbe1c65c49066438770641e
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:H/I:H/A:H Found at https://github.com/moodle/moodle/commit/430f685834cef190bdf58afabe79e765d596890d
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:H/I:H/A:H Found at https://github.com/moodle/moodle/commit/723d1a747555b795ed53a0fad01da455797bb78f
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:H/I:H/A:H Found at https://github.com/moodle/moodle/commit/898d5d05a0c3ae6795db0241bf3cb5951213d45c
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:H/I:H/A:H Found at https://github.com/moodle/moodle/commit/b77dcd23d8e39265b5c096f0d947764c02d832c8
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:H/I:H/A:H Found at https://github.com/moodle/moodle/commit/cd3060d941a051931eb2613b25bafb0108665895
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:H/I:H/A:H Found at https://github.com/moodle/moodle/commit/fba7dcd90abd45210d782a79c6e25bb3840c7438
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:H/I:H/A:H Found at https://moodle.org/mod/forum/discuss.php?d=384012#p1547744
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:S/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2019-3849
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:L/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-3849
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 0.58222
EPSS Score 0.00374
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:26:22.680280+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-5wg9-5w3f-hxmh/GHSA-5wg9-5w3f-hxmh.json 36.1.3