Critical 9.4Published Jul 31, 2026

CVE-2026-63221CodeIgniter: SQL injection is possible via Query Builder deleteBatch() when used with where() conditions

Updated under an hour ago (Oct 26, 2026, 8:40 PM ET)

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Exploited in the last 30 days

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.

CVSS: 9.4 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
Weakness (CWE): CWE-89
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jul 31, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

codeigniter4 CodeIgniter4 codeigniter4:codeigniter4 (from the name)	from 4.3.0, < 4.7.4	CNA record

References

References

https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-c9w5-rwh3-7pm9	x-refsource-confirm
https://github.com/codeigniter4/CodeIgniter4/commit/f5e463b9a3e986389ce285963e51a7f1fab6559f	x-refsource-misc
https://github.com/codeigniter4/CodeIgniter4/releases/tag/v4.7.4	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.