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cve.new
GHSA-vm9c-39jx-q45wmedium6.9

Moodle vulnerable to Exposure of Sensitive Information to an Unauthorized Actor

Check your stack

The advisory, in context

lib/filelib.php in Moodle through 2.2.11, 2.3.x before 2.3.10, 2.4.x before 2.4.7, and 2.5.x before 2.5.3 does not send "Cache-Control: private" HTTP headers, which allows remote attackers to obtain sensitive information by requesting a file that had been previously retrieved by a caching proxy server.

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 2.3.10

Fixed in 2.3.10

6 explicitly affected versions

v2.3.4, v2.3.5, v2.3.6, v2.3.7, v2.3.8, v2.3.9

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "0"
        },
        {
          "fixed": "2.3.10"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "v2.3.4",
    "v2.3.5",
    "v2.3.6",
    "v2.3.7",
    "v2.3.8",
    "v2.3.9"
  ]
}
Ecosystem versions

From 2.4.0-beta before 2.4.7

Fixed in 2.4.7

8 explicitly affected versions

v2.4.0, v2.4.0-rc1, v2.4.1, v2.4.2, v2.4.3, v2.4.4, v2.4.5, v2.4.6

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "2.4.0-beta"
        },
        {
          "fixed": "2.4.7"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "v2.4.0",
    "v2.4.0-rc1",
    "v2.4.1",
    "v2.4.2",
    "v2.4.3",
    "v2.4.4",
    "v2.4.5",
    "v2.4.6"
  ]
}
Ecosystem versions

From 2.5.0-beta before 2.5.3

Fixed in 2.5.3

5 explicitly affected versions

v2.5.0, v2.5.0-beta, v2.5.0-rc1, v2.5.1, v2.5.2

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "2.5.0-beta"
        },
        {
          "fixed": "2.5.3"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "v2.5.0",
    "v2.5.0-beta",
    "v2.5.0-rc1",
    "v2.5.1",
    "v2.5.2"
  ]
}

References