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cve.new
GHSA-p497-37fc-xvvcmedium

Moodle allows attackers to cause a denial of service

Check your stack

The advisory, in context

filter/mediaplugin/filter.php in Moodle through 2.5.9, 2.6.x before 2.6.7, 2.7.x before 2.7.4, and 2.8.x before 2.8.2 allows remote authenticated users to cause a denial of service (CPU consumption or partial outage) via a crafted string that is matched against an improper regular expression.

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

Ecosystem versions

Earlier releases before 2.6.7

Fixed in 2.6.7

42 explicitly affected versions

v2.3.10, v2.3.11, v2.3.4, v2.3.5, v2.3.6, v2.3.7, v2.3.8, v2.3.9, v2.4.0, v2.4.0-rc1, v2.4.1, v2.4.10, v2.4.11, v2.4.2, v2.4.3, v2.4.4, v2.4.5, v2.4.6, v2.4.7, v2.4.8, v2.4.9, v2.5.0, v2.5.0-beta, v2.5.0-rc1, v2.5.1, v2.5.2, v2.5.3, v2.5.4, v2.5.5, v2.5.6, v2.5.7, v2.5.8, v2.5.9, v2.6.0, v2.6.0-beta, v2.6.0-rc1, v2.6.1, v2.6.2, v2.6.3, v2.6.4, v2.6.5, v2.6.6

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "0"
        },
        {
          "fixed": "2.6.7"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "v2.3.10",
    "v2.3.11",
    "v2.3.4",
    "v2.3.5",
    "v2.3.6",
    "v2.3.7",
    "v2.3.8",
    "v2.3.9",
    "v2.4.0",
    "v2.4.0-rc1",
    "v2.4.1",
    "v2.4.10",
    "v2.4.11",
    "v2.4.2",
    "v2.4.3",
    "v2.4.4",
    "v2.4.5",
    "v2.4.6",
    "v2.4.7",
    "v2.4.8",
    "v2.4.9",
    "v2.5.0",
    "v2.5.0-beta",
    "v2.5.0-rc1",
    "v2.5.1",
    "v2.5.2",
    "v2.5.3",
    "v2.5.4",
    "v2.5.5",
    "v2.5.6",
    "v2.5.7",
    "v2.5.8",
    "v2.5.9",
    "v2.6.0",
    "v2.6.0-beta",
    "v2.6.0-rc1",
    "v2.6.1",
    "v2.6.2",
    "v2.6.3",
    "v2.6.4",
    "v2.6.5",
    "v2.6.6"
  ]
}
Ecosystem versions

From 2.7.0 before 2.7.4

Fixed in 2.7.4

4 explicitly affected versions

v2.7.0, v2.7.1, v2.7.2, v2.7.3

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "2.7.0"
        },
        {
          "fixed": "2.7.4"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "v2.7.0",
    "v2.7.1",
    "v2.7.2",
    "v2.7.3"
  ]
}
Ecosystem versions

From 2.8.0 before 2.8.2

Fixed in 2.8.2

2 explicitly affected versions

v2.8.0, v2.8.1

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "2.8.0"
        },
        {
          "fixed": "2.8.2"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "v2.8.0",
    "v2.8.1"
  ]
}

References