---
id: CVE-2026-63221
title: CodeIgniter is a PHP full-stack web framework
summary: >-
  CodeIgniter is a PHP full-stack web framework. From 4.3.0 through 4.7.3, Query
  Builder deleteBatch() substitutes bound values from where() conditions into
  generated SQL while ignoring their escape flags, allowing user-controlled
  conditio…
severity: critical
cvss: 9.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H'
cwe:
  - CWE-89
vendor: codeigniter4
product: codeigniter4/framework
affected:
  - 'codeigniter4/framework >= 4.3.0, < 4.7.4'
patched:
  - codeigniter4/framework 4.7.4
published: '2026-07-31'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:51:43.490'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-63221'
references:
  - url: >-
      https://github.com/codeigniter4/CodeIgniter4/commit/f5e463b9a3e986389ce285963e51a7f1fab6559f
    label: security-advisories@github.com
  - url: 'https://github.com/codeigniter4/CodeIgniter4/releases/tag/v4.7.4'
    label: security-advisories@github.com
  - url: >-
      https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-c9w5-rwh3-7pm9
    label: security-advisories@github.com
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-63221'
  - url: 'https://github.com/advisories/GHSA-c9w5-rwh3-7pm9'
tags:
  - nvd
  - ghsa
  - composer
epss: 0.00372
epssPercentile: 0.31134
aliases:
  - GHSA-c9w5-rwh3-7pm9
ecosystem: composer
ingestedAt: '2026-08-07T19:16:20.430Z'
---

## Overview

CodeIgniter is a PHP full-stack web framework. From 4.3.0 through 4.7.3, Query Builder deleteBatch() substitutes bound values from where() conditions into generated SQL while ignoring their escape flags, allowing user-controlled condition values to be interpreted as SQL. This affects only the deleteBatch() code path. Regular delete() operations escape where() binds correctly. This issue is fixed in version 4.7.4.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-63221)

Affected packages:

- `codeigniter4/framework >= 4.3.0, < 4.7.4`

Patched in:

- `codeigniter4/framework 4.7.4`

Source: https://github.com/advisories/GHSA-c9w5-rwh3-7pm9