CVE-2022-46170

Name: CVE-2022-46170
Creator: NVD / NIST
Published: 2022-12-22T19:15:09.223+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.84%

Last modified Jun 17, 2026

CVE-2022-46170 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. CodeIgniter is a PHP full-stack web framework. When an application uses (1) multiple session cookies (e.g., one for user pages and one for admin pages) and (2) a session handler is set to `DatabaseHandler`, `MemcachedHandler`, or `RedisHandler`, then if an attacker gets one session cookie (e.g., one for user pages), they may be able to access pages that require another session cookie (e.g., for admin pages). EPSS estimates a 0.84% chance of exploitation in the next 30 days.

Description

CodeIgniter is a PHP full-stack web framework. When an application uses (1) multiple session cookies (e.g., one for user pages and one for admin pages) and (2) a session handler is set to `DatabaseHandler`, `MemcachedHandler`, or `RedisHandler`, then if an attacker gets one session cookie (e.g., one for user pages), they may be able to access pages that require another session cookie (e.g., for admin pages). This issue has been patched, please upgrade to version 4.2.11 or later. As a workaround, use only one session cookie.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.84%

53.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Codeigniter	Codeigniter	>= 4.0.0, < 4.2.11

References

https://github.com/codeigniter4/CodeIgniter4/commit/f9fb6574fbeb5a4aa63f7ea87296523e10db9328Patch, Third Party Advisory
https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-6cq5-8cj7-g558Third Party Advisory
https://github.com/codeigniter4/CodeIgniter4/commit/f9fb6574fbeb5a4aa63f7ea87296523e10db9328Patch, Third Party Advisory
https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-6cq5-8cj7-g558Third Party Advisory

Timeline

Published: Dec 22, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-46170?

How severe is CVE-2022-46170?

CVE-2022-46170 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.84% probability of exploitation in the next 30 days.

How do I fix CVE-2022-46170?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-46170?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST