GHSA-GGXQ-2MG9-8966

Vulnerability from github – Published: 2026-02-21 06:30 – Updated: 2026-02-25 15:52
VLAI?
Summary
Moodle has a Remote Code Execution risk via file restore
Details

A flaw was identified in Moodle’s backup restore functionality where specially crafted backup files were not properly validated during processing. If a malicious backup file is restored, it could lead to unintended execution of server-side code. Since restore capabilities are typically available to privileged users, exploitation requires authenticated access. Successful exploitation could result in full compromise of the Moodle server.

Severity ?
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "moodle/moodle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.1.0-beta"
            },
            {
              "fixed": "5.1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "moodle/moodle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0-beta"
            },
            {
              "fixed": "5.0.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "moodle/moodle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.5.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-26045"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-25T15:52:47Z",
    "nvd_published_at": "2026-02-21T06:16:58Z",
    "severity": "HIGH"
  },
  "details": "A flaw was identified in Moodle\u2019s backup restore functionality where specially crafted backup files were not properly validated during processing. If a malicious backup file is restored, it could lead to unintended execution of server-side code. Since restore capabilities are typically available to privileged users, exploitation requires authenticated access. Successful exploitation could result in full compromise of the Moodle server.",
  "id": "GHSA-ggxq-2mg9-8966",
  "modified": "2026-02-25T15:52:47Z",
  "published": "2026-02-21T06:30:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26045"
    },
    {
      "type": "WEB",
      "url": "https://github.com/moodle/moodle/commit/566054ba11f609a6d48d09b32e85d435d49927da"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-26045"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2440901"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/moodle/moodle"
    },
    {
      "type": "WEB",
      "url": "https://moodle.org/mod/forum/discuss.php?d=473314"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Moodle has a Remote Code Execution risk via file restore"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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