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cve.new
GHSA-w6jr-wj64-mc9xhigh7.7

Deserialization of Untrusted Data in Codeigniter4

Check your stack

The advisory, in context

Impact

Deserialization of Untrusted Data was found in the old() function in CodeIgniter4. Remote attackers may inject auto-loadable arbitrary objects with this vulnerability, and possibly execute existing PHP code on the server. We are aware of a working exploit, which can lead to SQL injection.

Patches

Upgrade to v4.1.6 or later.

Workarounds

Do not use:

  • old() and form_helper
  • RedirectResponse::withInput() and redirect()->withInput()

References

For more information

If you have any questions or comments about this advisory:

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 4.1.6

Fixed in 4.1.6

24 explicitly affected versions

4.0.0, 4.0.0-rc.4, v4.0.0-alpha.3, v4.0.0-alpha.4, v4.0.0-alpha.5, v4.0.0-beta.1, v4.0.0-beta.2, v4.0.0-beta.3, v4.0.0-beta.4, v4.0.0-rc.1, v4.0.0-rc.2, v4.0.0-rc.2.1, v4.0.0-rc.3, v4.0.1, v4.0.2, v4.0.3, v4.0.4, v4.0.5, v4.1.0, v4.1.1, v4.1.2, v4.1.3, v4.1.4, v4.1.5

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "0"
        },
        {
          "fixed": "4.1.6"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "4.0.0",
    "4.0.0-rc.4",
    "v4.0.0-alpha.3",
    "v4.0.0-alpha.4",
    "v4.0.0-alpha.5",
    "v4.0.0-beta.1",
    "v4.0.0-beta.2",
    "v4.0.0-beta.3",
    "v4.0.0-beta.4",
    "v4.0.0-rc.1",
    "v4.0.0-rc.2",
    "v4.0.0-rc.2.1",
    "v4.0.0-rc.3",
    "v4.0.1",
    "v4.0.2",
    "v4.0.3",
    "v4.0.4",
    "v4.0.5",
    "v4.1.0",
    "v4.1.1",
    "v4.1.2",
    "v4.1.3",
    "v4.1.4",
    "v4.1.5"
  ]
}

References