{"id":"CVE-2022-21647","aliases":["BIT-codeigniter-2022-21647","EUVD-2022-0719","GHSA-w6jr-wj64-mc9x"],"status":"published","title":"Deserialization of Untrusted Data in Codeigniter4","description":"CodeIgniter is an open source PHP full-stack web framework. 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. Users are advised to upgrade to v4.1.6 or later. Users unable to upgrade as advised to not use the `old()` function and form_helper nor `RedirectResponse::withInput()` and `redirect()-\u003ewithInput()`.","severity":{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.37671,"percentile":0.98548,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-502"],"published":"2022-01-04T20:05:11Z","modified":"2026-10-28T02:30:35Z","fixes":[{"ecosystem":"Packagist","package":"codeigniter4/framework","fixed_in":["4.1.6"],"sources":["ghsa","osv"]},{"ecosystem":"Bitnami","package":"codeigniter","fixed_in":["4.1.6"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"codeigniter4/framework","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.6"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"codeigniter","ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0"},{"fixed":"4.1.6"}]}]},{"source":"osv","ecosystem":"Packagist","package":"codeigniter4/framework","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.6"}]}],"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"]}],"products":[{"vendor":"codeigniter","product":"codeigniter"},{"vendor":"codeigniter4","product":"codeigniter4"}],"references":[{"url":"https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-w6jr-wj64-mc9x","tags":["x_refsource_CONFIRM","x_transferred","Mitigation","Third Party Advisory","web","advisory"]},{"url":"https://github.com/codeigniter4/CodeIgniter4/commit/ce95ed5765256e2f09f3513e7d42790e0d6948f5","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","web","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-21647","tags":["advisory"]},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/codeigniter4/framework/CVE-2022-21647.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-w6jr-wj64-mc9x"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21647.json","tags":["advisory"]},{"url":"https://github.com/codeigniter4/CodeIgniter4","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2022-21647","title":"Deserialization of Untrusted Data in Codeigniter4","description":"CodeIgniter is an open source PHP full-stack web framework. 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. Users are advised to upgrade to v4.1.6 or later. Users unable to upgrade as advised to not use the `old()` function and form_helper nor `RedirectResponse::withInput()` and `redirect()-\u003ewithInput()`.","status":"published","published":"2022-01-04T20:05:11Z","modified":"2025-04-23T19:14:59.823Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:34:29.057251Z"}],"euvd":[{"id":"EUVD-2022-0719","description":"CodeIgniter is an open source PHP full-stack web framework. 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. Users are advised to upgrade to v4.1.6 or later. Users unable to upgrade as advised to not use the `old()` function and form_helper nor `RedirectResponse::withInput()` and `redirect()-\u003ewithInput()`.","status":"published","published":"2022-01-04T20:05:11Z","modified":"2025-04-23T19:14:59Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T20:52:06.891582Z"}],"ghsa":[{"id":"GHSA-w6jr-wj64-mc9x","title":"Deserialization of Untrusted Data in Codeigniter4","description":"### Impact\nDeserialization of Untrusted Data was found in the `old()` function in CodeIgniter4.\nRemote attackers may inject auto-loadable arbitrary objects with this vulnerability, \nand possibly execute existing PHP code on the server.\nWe are aware of a working exploit, which can lead to SQL injection.\n\n### Patches\nUpgrade to v4.1.6 or later.\n\n### Workarounds\nDo not use:\n- `old()` and form_helper\n- `RedirectResponse::withInput()` and `redirect()-\u003ewithInput()`\n\n### References\n- [PHP Object Injection | OWASP](https://owasp.org/www-community/vulnerabilities/PHP_Object_Injection)\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [codeigniter4/CodeIgniter4](https://github.com/codeigniter4/CodeIgniter4/issues)\n* Email us at [SECURITY.md](https://github.com/codeigniter4/CodeIgniter4/blob/develop/SECURITY.md)\n","status":"published","published":"2022-01-06T22:52:41Z","modified":"2024-01-24T10:43:33Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:37:32.302254Z"}],"nvd":[{"id":"CVE-2022-21647","description":"CodeIgniter is an open source PHP full-stack web framework. 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. Users are advised to upgrade to v4.1.6 or later. Users unable to upgrade as advised to not use the `old()` function and form_helper nor `RedirectResponse::withInput()` and `redirect()-\u003ewithInput()`.","status":"published","published":"2022-01-04T20:15:07.93Z","modified":"2026-06-17T04:26:40.723Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:07:10.836864Z"}],"osv":[{"id":"CVE-2022-21647","title":"Deserialization of Untrusted Data in Codeigniter4","description":"CodeIgniter is an open source PHP full-stack web framework. 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. Users are advised to upgrade to v4.1.6 or later. Users unable to upgrade as advised to not use the `old()` function and form_helper nor `RedirectResponse::withInput()` and `redirect()-\u003ewithInput()`.","status":"published","published":"2022-01-04T20:05:11Z","modified":"2026-10-28T02:30:35.939340091Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:44:23.655778Z"},{"id":"GHSA-w6jr-wj64-mc9x","title":"Deserialization of Untrusted Data in Codeigniter4","description":"### Impact\nDeserialization of Untrusted Data was found in the `old()` function in CodeIgniter4.\nRemote attackers may inject auto-loadable arbitrary objects with this vulnerability, \nand possibly execute existing PHP code on the server.\nWe are aware of a working exploit, which can lead to SQL injection.\n\n### Patches\nUpgrade to v4.1.6 or later.\n\n### Workarounds\nDo not use:\n- `old()` and form_helper\n- `RedirectResponse::withInput()` and `redirect()-\u003ewithInput()`\n\n### References\n- [PHP Object Injection | OWASP](https://owasp.org/www-community/vulnerabilities/PHP_Object_Injection)\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [codeigniter4/CodeIgniter4](https://github.com/codeigniter4/CodeIgniter4/issues)\n* Email us at [SECURITY.md](https://github.com/codeigniter4/CodeIgniter4/blob/develop/SECURITY.md)\n","status":"published","published":"2022-01-06T22:52:41Z","modified":"2024-02-16T08:17:56.625554Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:46:58.401149Z"},{"id":"BIT-codeigniter-2022-21647","description":"CodeIgniter is an open source PHP full-stack web framework. 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. Users are advised to upgrade to v4.1.6 or later. Users unable to upgrade as advised to not use the `old()` function and form_helper nor `RedirectResponse::withInput()` and `redirect()-\u003ewithInput()`.","status":"published","published":"2024-03-06T10:54:39.099Z","modified":"2024-03-06T11:25:28.861Z","updated_at":"2026-11-02T15:28:28.70813Z"}]}}