CVE-2022-21647CWE-502

Deserialization of Untrusted Data in Codeigniter4

High · published January 4, 2022

CVSS v3.1
7.7
EPSS
38%
Percentile
98.5
In the wild
Unconfirmed
What it is

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()`.

The record
Technical detail
CVSS v3.1
7.7 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.37671 · 98.5th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2022-01-04T20:05Z
EPSS history
Timeline
  • 04 JAN 20:05Z
    Deserialization of Untrusted Data in Codeigniter4
    cvelistv5