CVE-2022-21647
HIGHCodeIgniter 4.0.0-4.1.5 - Deserialization of Untrusted Data via old() Function
Title source: llmDescription
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()->withInput()`.
References (2)
Core 2
Core References
Mitigation, Third Party Advisory x_refsource_confirm
https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-w6jr-wj64-mc9x
Patch, Third Party Advisory x_refsource_misc
https://github.com/codeigniter4/CodeIgniter4/commit/ce95ed5765256e2f09f3513e7d42790e0d6948f5
Scores
CVSS v3
7.7
EPSS
0.3767
EPSS Percentile
98.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-502
Status
published
Products (2)
codeigniter/codeigniter
4.0.0 - 4.1.6
codeigniter4/framework
0 - 4.1.6Packagist
Published
Jan 04, 2022
Tracked Since
Feb 18, 2026