CVE-2024-38277 | moodle: QR login key and auto-login key for the Moodle mobile app should be generated as separate keys

A unique key should be generated for a user's QR login key and their auto-login key, so the same key cannot be used interchangeably between the two.

Published: 2024-06-18 Last update: 2025-08-07 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-38277 is rated Low Risk (35.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.19%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-38277

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-07 0.07% 0.19% +0.11%
2 2025-03-17 0.04% 0.07% +0.03%
3 2024-06-19 — 0.04% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-38277

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.4 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 2.5 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-38277

GitHub Security Advisory for CVE-2024-38277

GHSA-r82w-3phg-qvr4 · Severity: medium · Ecosystem: composer — Moodle uses the same key for QR login and auto-login

OS Trackers for CVE-2024-38277

vendor priority summary link
ubuntu medium CVE-2024-38277 medium priority: Ubuntu including 1 source packages (moodle), 7 status rows across 7 suites (bionic, focal, jammy, mantic, noble, upstream, xenial): DNE 4, not-affected 2, released 1. https://ubuntu.com/security/CVE-2024-38277

Affected software / configurations for CVE-2024-38277

Vendor Product Version Raw CPE
moodle moodle >= 4.1.0, < 4.1.11 cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle >= 4.2.0, < 4.2.8 cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle >= 4.3.0, < 4.3.5 cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle 4.4.0 cpe:2.3:a:moodle:moodle:4.4.0:*:*:*:*:*:*:*
fedoraproject fedora 39 cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
fedoraproject fedora 40 cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*

References for CVE-2024-38277

cvelogic Threat Intelligence