Deserialization of Untrusted Data in Codeigniter4
CVE-2022-21647

7.7HIGH

Key Information:

Vendor

Codeigniter4

Status
Codeigniter4
Vendor
CVE Published:
4 January 2022

What is CVE-2022-21647?

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().

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Deploy the Patch

Affected Version(s)

CodeIgniter4 < 4.1.6

References

https://github.com/codeigniter4/CodeIgniter4/security/adv...
x_refsource_CONFIRM
https://github.com/codeigniter4/CodeIgniter4/commit/ce95e...
x_refsource_MISC

EPSS Score

10% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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