CVE-2025-3627: Moodle/moodle Moodle Makes Some User Data Vulnerability

MODERATE
Advisory Identifier: GHSA-x45j-jq9q-gf3q
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CVSS 4.3
CWE-287
Published
Advisory Summary

CVE-2025-3627 is a MODERATE (CVSS 4.3) moodle makes some user data vulnerability (CWE-287: Improper Authentication) affecting Moodle/moodle libraries in the Packagist ecosystem. The issue involves moodle makes some user data available before completing second factor with mfa enabled. Remediation is available by upgrading affected packages to version 4.3.12, 4.4.8, 4.5.4.

CVE-2025-3627 at a Glance

CVE Identifier CVE-2025-3627
GHSA Identifier GHSA-x45j-jq9q-gf3q
Severity MODERATE
CVSS v3.1 Base Score 4.3
CWE Classification CWE-287: Improper Authentication
Affected Product Moodle/moodle
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 4.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2025-3627

To remediate this vulnerability, upgrade all affected Moodle/moodle dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

moodle/moodle fixed: 4.3.12 
Upgrade moodle/moodle to 4.3.12
moodle/moodle fixed: 4.4.8 
Upgrade moodle/moodle to 4.4.8
moodle/moodle fixed: 4.5.4 
Upgrade moodle/moodle to 4.5.4
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for moodle/moodle

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-3627, inspect your project dependencies for Moodle/moodle:

inspect dependencies for moodle/moodle

Analyze the terminal output to locate any version of Moodle/moodle in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.3.12), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Moodle/moodle, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A security vulnerability was discovered in Moodle that allows some users to access sensitive information about other students before they finish verifying their identities using two-factor authentication (2FA).

CVE-2025-3627 Affected Moodle/moodle Versions

3 component(s)
Fixed Versions:
4.3.124.4.84.5.4
Product / Package Ecosystem Affected Versions Fixed Version
moodle/moodle
 Packagist
≥ 4.3.0-beta
< 4.3.12
4.3.12
moodle/moodle
 Packagist
≥ 4.4.0-beta
< 4.4.8
4.4.8
moodle/moodle
 Packagist
≥ 4.5.0-beta
< 4.5.4
4.5.4

References

NVD — CVE-2025-3627 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-3627
Moodle/moodle Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2025-3627
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2359692
Moodle/moodle Source Repository REPOSITORY
https://github.com/moodle/moodle
Moodle/moodle Source Repository REPOSITORY
https://github.com/search?q=repo%3Amoodle%2Fmoodle+MDL-84351&type=commits
moodle.org/mod/forum/discuss.p... WEB
https://moodle.org/mod/forum/discuss.php?d=467594

Frequently Asked Questions

What is CVE-2025-3627?
CVE-2025-3627 is a security vulnerability in Moodle/moodle involving Moodle makes some user data available before completing second factor with MFA enabled under CWE-287: Improper Authentication.
Which Moodle/moodle versions are affected?
Affected versions include releases prior to 4.3.12, 4.4.8, 4.5.4 across affected packages: moodle/moodle.
What version fixes CVE-2025-3627?
Upgrading to 4.3.12, 4.4.8, 4.5.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is moodle/moodle affected?
Yes, moodle/moodle is affected in releases prior to 4.3.12, 4.4.8, 4.5.4. Upgrade your dependency to 4.3.12, 4.4.8, 4.5.4 or later.
What is the CVSS score of CVE-2025-3627?
CVE-2025-3627 has a CVSS v3.1 base score of 4.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2025-3627?
CVE-2025-3627 is classified under CWE-287: Improper Authentication (When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.).
How can I check Packagist dependencies for CVE-2025-3627?
Run the dependency tree command: 'inspect dependencies for moodle/moodle'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-x45j-jq9q-gf3q",
  "modified" : "2025-04-25T16:35:19Z",
  "published" : "2025-04-25T15:31:22Z",
  "aliases" : [ "CVE-2025-3627" ],
  "summary" : "Moodle makes some user data available before completing second factor with MFA enabled",
  "details" : "A security vulnerability was discovered in Moodle that allows some users to access sensitive information about other students before they finish verifying their identities using two-factor authentication (2FA).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.3.0-beta"
      }, {
        "fixed" : "4.3.12"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.4.0-beta"
      }, {
        "fixed" : "4.4.8"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.5.0-beta"
      }, {
        "fixed" : "4.5.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-3627"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2025-3627"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2359692"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/moodle/moodle"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/search?q=repo%3Amoodle%2Fmoodle+MDL-84351&type=commits"
  }, {
    "type" : "WEB",
    "url" : "https://moodle.org/mod/forum/discuss.php?d=467594"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-04-25T16:35:19Z",
    "nvd_published_at" : "2025-04-25T15:15:36Z"
  }
}