Vulnerability-Lookup

CVE-2024-33999 (GCVE-0-2024-33999)

Vulnerability from cvelistv5 – Published: 2024-05-31 19:53 – Updated: 2024-08-29 19:59

Title

moodle: unsafe direct use of $_SERVER['HTTP_REFERER'] in admin/tool/mfa/index.php

Summary

The referrer URL used by MFA required additional sanitizing, rather than being used directly.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-13 19:55 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

fedora redhat root Scorecard

References

1 reference

URL	Tags
https://moodle.org/mod/forum/discuss.php?d=458387

Impacted products

1 product

Vendor	Product	Version
		Affected: 4.3 , ≤ 4.3.3 (semver)

Date Public

2024-05-20 09:00

Credits

Petr Skoda

Show details on NVD website

JSON

To clipboard

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        ],
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      "status": "final",
      "title": "moodle: unsafe direct use of $_SERVER[\u0027HTTP_REFERER\u0027] in admin/tool/mfa/index.php",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-33999.json",
      "version": "3"
    },
    "vulnrichment": {
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}

bit-moodle-2024-33999

Vulnerability from bitnami_vulndb

Published

2025-05-31 05:57

Modified

2026-09-08 08:34

Summary

moodle: unsafe direct use of $_SERVER['HTTP_REFERER'] in admin/tool/mfa/index.php

Details

The referrer URL used by MFA required additional sanitizing, rather than being used directly.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "moodle",
        "purl": "pkg:bitnami/moodle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.3.0"
            },
            {
              "fixed": "4.3.4"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-33999"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*"
    ],
    "severity": "Critical"
  },
  "details": "The referrer URL used by MFA required additional sanitizing, rather than being used directly.",
  "id": "BIT-moodle-2024-33999",
  "modified": "2026-09-08T08:34:36.952Z",
  "published": "2025-05-31T05:57:14.246Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://moodle.org/mod/forum/discuss.php?d=458387"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-33999"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "moodle: unsafe direct use of $_SERVER[\u0027HTTP_REFERER\u0027] in admin/tool/mfa/index.php"
}

CERTFR-2024-AVI-0388

Vulnerability from certfr_avis - Published: 2024-05-13 - Updated: 2024-05-13

De multiples vulnérabilités ont été découvertes dans Moodle. Elles permettent à un attaquant de provoquer une injection de code indirecte à distance (XSS), une injection de requêtes illégitimes par rebond (CSRF), un contournement de la politique de sécurité.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Moodle versions 4.1.x antérieures à 4.1.10
Moodle versions 4.2.x antérieures à 4.2.7
Moodle versions 4.3.x antérieures à 4.3.4

L'éditeur précise que les versions antérieures à 4.1.x sont vulnérables et ne bénéficieront pas de mises à jour de sécurité.

Impacted products

	Vendor	Product	Description

References

Title

Publication Time

EUVD-2026-160752

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 06:37

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

JSON

To clipboard

{
  "assigner": "ENISA",
  "date_reserved": "2026-10-02T06:37:58.301884+00:00",
  "id": "EUVD-2026-160752"
}

FKIE_CVE-2024-33999

Vulnerability from fkie_nvd - Published: 2024-05-31 20:15 - Updated: 2026-06-17 07:32

Severity

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

The referrer URL used by MFA required additional sanitizing, rather than being used directly.

References

	URL	Tags
	patrick@puiterwijk.org	https://moodle.org/mod/forum/discuss.php?d=458387	Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://moodle.org/mod/forum/discuss.php?d=458387	Vendor Advisory

Impacted products

	Vendor	Product	Version
	moodle	moodle	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://git.moodle.org",
          "defaultStatus": "unknown",
          "packageName": "Moodle",
          "versions": [
            {
              "lessThanOrEqual": "4.3.3",
              "status": "affected",
              "version": "4.3",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "patrick@puiterwijk.org"
    }
  ],
  "configurations": [
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              "matchCriteriaId": "BE7100F0-5F88-497E-A04D-071DFEE765C6",
              "versionEndExcluding": "4.3.4",
              "versionStartIncluding": "4.3.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The referrer URL used by MFA required additional sanitizing, rather than being used directly."
    },
    {
      "lang": "es",
      "value": "La URL de referencia utilizada por MFA requiri\u00f3 una sanitizaci\u00f3n adicional, en lugar de usarse directamente."
    }
  ],
  "id": "CVE-2024-33999",
  "lastModified": "2026-06-17T07:32:42.783",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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        "type": "Secondary"
      }
    ],
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            }
          ],
          "role": "CISA Coordinator",
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          "version": "2.0.3"
        }
      }
    ]
  },
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  "references": [
    {
      "source": "patrick@puiterwijk.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://moodle.org/mod/forum/discuss.php?d=458387"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://moodle.org/mod/forum/discuss.php?d=458387"
    }
  ],
  "sourceIdentifier": "patrick@puiterwijk.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "patrick@puiterwijk.org",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-R2WX-46GP-RP3H

Vulnerability from github – Published: 2024-05-31 21:30 – Updated: 2024-06-04 15:52

Summary

Moodle Improper Input Validation

Details

Unsafe direct use of $_SERVER['HTTP_REFERER'] in admin/tool/mfa/index.php. The referrer URL used by MFA required additional sanitizing, rather than being used directly.

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "moodle/moodle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.3.0"
            },
            {
              "fixed": "4.3.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-33999"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-06-04T15:52:11Z",
    "nvd_published_at": "2024-05-31T20:15:09Z",
    "severity": "HIGH"
  },
  "details": "Unsafe direct use of $_SERVER[\u0027HTTP_REFERER\u0027] in admin/tool/mfa/index.php. The referrer URL used by MFA required additional sanitizing, rather than being used directly.",
  "id": "GHSA-r2wx-46gp-rp3h",
  "modified": "2024-06-04T15:52:11Z",
  "published": "2024-05-31T21:30:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-33999"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/moodle/moodle"
    },
    {
      "type": "WEB",
      "url": "https://moodle.org/mod/forum/discuss.php?d=458387"
    },
    {
      "type": "WEB",
      "url": "http://git.moodle.org/gw?p=moodle.git\u0026a=search\u0026h=HEAD\u0026st=commit\u0026s=MDL-80878"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Moodle Improper Input Validation"
}

UBUNTU-CVE-2024-33999 (CVE-2024-33999)

Vulnerability from osv_ubuntu – Published: 2024-05-31 20:15 – Updated: 2026-09-23 15:49 – Source website

Details

The referrer URL used by MFA required additional sanitizing, rather than being used directly.

Severity

9.8 (Critical)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2024-33999	REPORT
	https://www.cve.org/CVERecord?id=CVE-2024-33999	REPORT
	https://moodle.org/mod/forum/discuss.php?d=458387	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "moodle",
            "binary_version": "3.0.3+dfsg-0ubuntu1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "moodle",
        "purl": "pkg:deb/ubuntu/moodle@3.0.3+dfsg-0ubuntu1+esm1?arch=source\u0026distro=esm-apps-legacy/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.9+dfsg-1",
        "2.7.10+dfsg-1",
        "2.7.11+dfsg-1",
        "2.7.11+dfsg-2",
        "2.7.12+dfsg-1",
        "3.0.3+dfsg-0ubuntu1",
        "3.0.3+dfsg-0ubuntu1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "moodle",
            "binary_version": "3.0.3+dfsg-0ubuntu1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "moodle",
        "purl": "pkg:deb/ubuntu/moodle@3.0.3+dfsg-0ubuntu1+esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.3+dfsg-0ubuntu1",
        "3.0.3+dfsg-0ubuntu1+esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "The referrer URL used by MFA required additional sanitizing, rather than being used directly.",
  "id": "UBUNTU-CVE-2024-33999",
  "modified": "2026-09-23T15:49:46Z",
  "published": "2024-05-31T20:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-33999"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-33999"
    },
    {
      "type": "REPORT",
      "url": "https://moodle.org/mod/forum/discuss.php?d=458387"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2024-33999"
  ]
}

WID-SEC-W-2024-1096

Vulnerability from csaf_certbund - Published: 2024-05-12 22:00 - Updated: 2024-06-04 22:00

Summary

Moodle: Mehrere Schwachstellen

Severity

Hoch

Scope

14 vulnerabilities in this advisory, including CVE-2024-33999.

CVE-2024-33999

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2024-33999 (GCVE-0-2024-33999)

bit-moodle-2024-33999

Vulnerability from bitnami_vulndb

CERTFR-2024-AVI-0388

Solution

EUVD-2026-160752

FKIE_CVE-2024-33999

GHSA-R2WX-46GP-RP3H

UBUNTU-CVE-2024-33999 (CVE-2024-33999)

WID-SEC-W-2024-1096

Tags

Sightings

Nomenclature

Related by attack behaviour