Vulnerability record · CVE-2022-35943 · published 12 August 2022
CVE-2022-35943: Codeigniter cross-site request forgery vulnerability
Codeigniter · Codeigniter
Shield is an authentication and authorization framework for CodeIgniter 4. This vulnerability may allow [SameSite Attackers](https://canitakeyoursubdomain.name/) to bypass the [CodeIgniter4 CSRF protection](https://codeigniter4.github.io/userguide/libraries/security.html) mechanism with CodeIgniter Shield. For this attack to succeed, the attacker must have direct (or indirect, e.g., XSS) control over a subdomain site (e.g., `https://a.example.com/`) of the target site (e.g., `http://example.com/`). Upgrade to **CodeIgniter v4.2.3 or later** and **Shield v1.0.0-beta.2 or later**. As a workaround: set `Config\Security::$csrfProtection` to `'session,'`remove old session data right after login (immediately after ID and password match) and regenerate CSRF token right after login (immediately after ID and password match)
Description
Shield is an authentication and authorization framework for CodeIgniter 4. This vulnerability may allow [SameSite Attackers](https://canitakeyoursubdomain.name/) to bypass the [CodeIgniter4 CSRF protection](https://codeigniter4.github.io/userguide/libraries/security.html) mechanism with CodeIgniter Shield. For this attack to succeed, the attacker must have direct (or indirect, e.g., XSS) control over a subdomain site (e.g., `https://a.example.com/`) of the target site (e.g., `http://example.com/`). Upgrade to **CodeIgniter v4.2.3 or later** and **Shield v1.0.0-beta.2 or later**. As a workaround: set `Config\Security::$csrfProtection` to `'session,'`remove old session data right after login (immediately after ID and password match) and regenerate CSRF token right after login (immediately after ID and password match)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
| Link | Tags |
|---|---|
| https://codeigniter4.github.io/userguide/libraries/security.htm | Broken Link |
| https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite | Third Party Advisory |
| https://github.com/codeigniter4/shield/security/advisories/GHSA-5hm8-vh6r-2cjq | ExploitMitigationThird Party Advisory |
| https://jub0bs.com/posts/2021-01-29-great-samesite-confusion | Third Party Advisory |
| https://codeigniter4.github.io/userguide/libraries/security.htm | Broken Link |
| https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie/SameSite | Third Party Advisory |
| https://github.com/codeigniter4/shield/security/advisories/GHSA-5hm8-vh6r-2cjq | ExploitMitigationThird Party Advisory |
| https://jub0bs.com/posts/2021-01-29-great-samesite-confusion | Third Party Advisory |
Track CVE-2022-35943 inside VULONE
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Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2022-35943), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.
