CVE-2019-14883: Moodle/moodle Moodle Email Media URL Tokens Vulnerability

MODERATE
Advisory Identifier: GHSA-774q-wfcp-vc2q
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CVSS 5.3
CWE-862 CWE-285
Published
Advisory Summary

CVE-2019-14883 is a MODERATE (CVSS 5.3) moodle email media url tokens vulnerability (CWE-862: Missing Authorization) affecting Moodle/moodle libraries in the Packagist ecosystem. The issue involves moodle email media url tokens were not checking for user status. Remediation is available by upgrading affected packages to version 3.6.7, 3.7.3.

CVE-2019-14883 at a Glance

CVE Identifier CVE-2019-14883
GHSA Identifier GHSA-774q-wfcp-vc2q
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-862: Missing Authorization
Affected Product Moodle/moodle
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 5.3

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
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-2019-14883

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: 3.6.7 
Upgrade moodle/moodle to 3.6.7
moodle/moodle fixed: 3.7.3 
Upgrade moodle/moodle to 3.7.3
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-2019-14883, 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 3.6.7), 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-862: Missing Authorization, where the product does not perform an authorization check when an actor attempts to access a resource or perform an action. 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 vulnerability was found in Moodle 3.6 before 3.6.7 and 3.7 before 3.7.3, where tokens used to fetch inline atachments in email notifications were not disabled when a user's account was no longer active. Note: to access files, a user would need to know the file path, and their token.

CVE-2019-14883 Affected Moodle/moodle Versions

2 component(s)
Fixed Versions:
3.6.73.7.3
Product / Package Ecosystem Affected Versions Fixed Version
moodle/moodle
 Packagist
≥ 3.6
< 3.6.7
3.6.7
moodle/moodle
 Packagist
≥ 3.7
< 3.7.3
3.7.3

References

NVD — CVE-2019-14883 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-14883
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14883
Moodle/moodle Source Repository REPOSITORY
https://github.com/moodle/moodle
moodle.org/mod/forum/discuss.p... WEB
https://moodle.org/mod/forum/discuss.php?d=393586#p1586750

Frequently Asked Questions

What is CVE-2019-14883?
CVE-2019-14883 is a security vulnerability in Moodle/moodle involving Moodle Email media URL tokens were not checking for user status under CWE-862: Missing Authorization.
Which Moodle/moodle versions are affected?
Affected versions include releases prior to 3.6.7, 3.7.3 across affected packages: moodle/moodle.
What version fixes CVE-2019-14883?
Upgrading to 3.6.7, 3.7.3 (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 3.6.7, 3.7.3. Upgrade your dependency to 3.6.7, 3.7.3 or later.
What is the CVSS score of CVE-2019-14883?
CVE-2019-14883 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2019-14883?
CVE-2019-14883 is classified under CWE-862: Missing Authorization (The product does not perform an authorization check when an actor attempts to access a resource or perform an action.).
How can I check Packagist dependencies for CVE-2019-14883?
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-774q-wfcp-vc2q",
  "modified" : "2024-04-23T23:37:43Z",
  "published" : "2022-05-24T17:11:48Z",
  "aliases" : [ "CVE-2019-14883" ],
  "summary" : "Moodle Email media URL tokens were not checking for user status",
  "details" : "A vulnerability was found in Moodle 3.6 before 3.6.7 and 3.7 before 3.7.3, where tokens used to fetch inline atachments in email notifications were not disabled when a user's account was no longer active. Note: to access files, a user would need to know the file path, and their token.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.6"
      }, {
        "fixed" : "3.6.7"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.7"
      }, {
        "fixed" : "3.7.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-14883"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14883"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/moodle/moodle"
  }, {
    "type" : "WEB",
    "url" : "https://moodle.org/mod/forum/discuss.php?d=393586#p1586750"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-285", "CWE-862" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-23T23:37:43Z",
    "nvd_published_at" : "2020-03-18T13:15:00Z"
  }
}