CVE-2022-30597: Moodle/moodle External Control Of Assumed-Immutable Web Vulnerability

MODERATE
Advisory Identifier: GHSA-x6gm-qqwp-76gr
CVSS 5.3
CWE-472
Published
Advisory Summary

CVE-2022-30597 is a MODERATE (CVSS 5.3) external control of assumed-immutable web vulnerability (CWE-472: External Control of Assumed-Immutable Web Parameter) affecting Moodle/moodle libraries in the Packagist ecosystem. The issue involves external control of assumed-immutable web parameter in moodle. Remediation is available by upgrading affected packages to version 4.0.1, 3.11.7, 3.10.11, 3.9.14.

CVE-2022-30597 at a Glance

CVE Identifier CVE-2022-30597
GHSA Identifier GHSA-x6gm-qqwp-76gr
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-472: External Control of Assumed-Immutable Web Parameter
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-2022-30597

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: 4.0.1
Upgrade moodle/moodle to 4.0.1
moodle/moodle fixed: 3.11.7
Upgrade moodle/moodle to 3.11.7
moodle/moodle fixed: 3.10.11
Upgrade moodle/moodle to 3.10.11
moodle/moodle fixed: 3.9.14
Upgrade moodle/moodle to 3.9.14
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-2022-30597, 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 4.0.1), 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-472: External Control of Assumed-Immutable Web Parameter, where the web application does not sufficiently verify inputs that are assumed to be immutable but are actually externally controllable, such as hidden form fields. 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 flaw was found in moodle where the description user field was not hidden when being set as a hidden user field.

CVE-2022-30597 Affected Moodle/moodle Versions

4 component(s)
Fixed Versions:
4.0.13.11.73.10.113.9.14
Product / Package Ecosystem Affected Versions Fixed Version
moodle/moodle
Packagist
≥ 4.0
< 4.0.1
4.0.1
moodle/moodle
Packagist
≥ 3.11
< 3.11.7
3.11.7
moodle/moodle
Packagist
≥ 3.10
< 3.10.11
3.10.11
moodle/moodle
Packagist
≥ 3.9
< 3.9.14
3.9.14

References

Frequently Asked Questions

What is CVE-2022-30597?
CVE-2022-30597 is a security vulnerability in Moodle/moodle involving External Control of Assumed-Immutable Web Parameter in moodle under CWE-472: External Control of Assumed-Immutable Web Parameter.
Which Moodle/moodle versions are affected?
Affected versions include releases prior to 4.0.1, 3.11.7, 3.10.11, 3.9.14 across affected packages: moodle/moodle.
What version fixes CVE-2022-30597?
Upgrading to 4.0.1, 3.11.7, 3.10.11, 3.9.14 (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 4.0.1, 3.11.7, 3.10.11, 3.9.14. Upgrade your dependency to 4.0.1, 3.11.7, 3.10.11, 3.9.14 or later.
What is the CVSS score of CVE-2022-30597?
CVE-2022-30597 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-2022-30597?
CVE-2022-30597 is classified under CWE-472: External Control of Assumed-Immutable Web Parameter (The web application does not sufficiently verify inputs that are assumed to be immutable but are actually externally controllable, such as hidden form fields.).
How can I check Packagist dependencies for CVE-2022-30597?
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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-x6gm-qqwp-76gr",
  "modified" : "2022-06-02T20:14:19Z",
  "published" : "2022-05-19T00:00:15Z",
  "aliases" : [ "CVE-2022-30597" ],
  "summary" : "External Control of Assumed-Immutable Web Parameter in moodle",
  "details" : "A flaw was found in moodle where the description user field was not hidden when being set as a hidden user field.",
  "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" : "4.0"
      }, {
        "fixed" : "4.0.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.11"
      }, {
        "fixed" : "3.11.7"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.10"
      }, {
        "fixed" : "3.10.11"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "moodle/moodle"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.9"
      }, {
        "fixed" : "3.9.14"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-30597"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/moodle/moodle/commit/670268900cca1d55a718d708ae91bda826f8b9a3"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2083585"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/moodle/moodle"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OGF35EN5K2R6X3NTY3XPZSJ3UDASMXI6"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PIMSIRKCFLIC646K4GMUSZU7THOUVPAJ"
  }, {
    "type" : "WEB",
    "url" : "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QCTWSE3JDMSYL7DPCMXMMJEXZSS6VIA5"
  }, {
    "type" : "WEB",
    "url" : "https://moodle.org/mod/forum/discuss.php?d=434579"
  }, {
    "type" : "WEB",
    "url" : "http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-74318"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-472" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-02T20:14:19Z",
    "nvd_published_at" : "2022-05-18T18:15:00Z"
  }
}