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🛡️ CVE-2023-32692 — codeigniter

🔴 CVSS 9.5 — Critical ✅ No Known Exploit CWE-94 OSV
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Remote Code Execution Vulnerability in Validation Placeholders in CodeIgniter4

Impact

This vulnerability allows attackers to execute arbitrary code when you use Validation Placeholders.

The vulnerability exists in the Validation library, and validation methods in the controller and in-model validation are also vulnerable because they use the Validation library internally.

Patches

Upgrade to v4.3.5 or later.

Workarounds

Setting validation rules with an array.

E.g.:

```php

$validation->setRules([

'email' => ['required', 'valid_email, 'is_unique[users.email,id,{id}]'],

]);

```

References

  • https://codeigniter4.github.io/userguide/libraries/validation.html#validation-placeholders
  • https://codeigniter4.github.io/userguide/incoming/controllers.html#validating-data
  • https://codeigniter4.github.io/userguide/models/model.html#in-model-validation

For more information

If you have any questions or comments about this advisory:

  • Open an issue in [codeigniter4/CodeIgniter4](https://github.com/codeigniter4/CodeIgniter4/issues)
  • Email us at [SECURITY.md](https://github.com/codeigniter4/CodeIgniter4/blob/develop/SECURITY.md)

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2023-32692 is classified as CWE-94: Code Injection. Input is incorporated into code that the runtime evaluates, so an attacker can have their own code executed.

Affected software

CVE-2023-32692 is recorded against 2 packages.

  • codeigniter
  • codeigniter4/framework (fixed in 4.3.5)

Timeline and source

Published on 6 March 2024 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

github.com (Web)
github.com (Web)

Other advisories for this package

codeigniter has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-94: Code Injection) in other software:

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-94
Public Exploit ✅ No
Source OSV
Published 2024-03-06
Updated 2026-08-20
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
codeigniter — —
codeigniter4/framework — 4.3.5

Similar Threats

Exploit Protection

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