CVE-2026-63221

critical · 9.4

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.

9.4

CVSS

0.4%

EPSS (exploit prob.)

31st

EPSS percentile

2026-07-31

Published

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

Weaknesses

CWE-89

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-63221