CVE-2025-62398 | Moodle: possible to bypass mfa

A serious authentication flaw allowed attackers with valid credentials to bypass multi-factor authentication under certain conditions, potentially compromising user accounts.

Published: 2025-10-23 Last update: 2025-11-14 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-62398 is rated Low Risk (28.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.06%). 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-2025-62398

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 2025-11-17 0.03% 0.06% +0.03%
2 2025-10-23 — 0.03% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-62398

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-2025-62398

GitHub Security Advisory for CVE-2025-62398

GHSA-25wf-7x6c-wmpf · Severity: medium · Ecosystem: composer — Moodle does not properly enforce MFA

OS Trackers for CVE-2025-62398

vendor priority summary link
ubuntu medium CVE-2025-62398 medium priority: Ubuntu including 1 source packages (moodle), 7 status rows across 7 suites (bionic, jammy, noble, plucky, questing, upstream, xenial): DNE 4, needs-triage 3. https://ubuntu.com/security/CVE-2025-62398

Affected software / configurations for CVE-2025-62398

Vendor Product Version Raw CPE
moodle moodle >= 4.4.0, < 4.4.11 cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle >= 4.5.0, < 4.5.7 cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*
moodle moodle >= 5.0.0, < 5.0.3 cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*

References for CVE-2025-62398

cvelogic Threat Intelligence