CVE-2026-63221: 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 ignor

criticalCVSS 9.4CVE-2026-63221

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.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: critical — CVSS 9.4
Published: 2026-07-31
Last updated: 2026-07-31
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-63221

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-632210.38% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 30% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-63221	coverage & exploitation status	NVD · CVE.org

Recent advisories for CodeIgniter is a

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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highCVE-2026-63222: CodeIgniter is a PHP full-stack web framework. Prior to 4.7.4, calling UploadedFile::move() wi…nvd · 2026-07-31
mediumCVE-2026-63220: CodeIgniter is a PHP full-stack web framework. In versions prior to 4.7.4, IncomingRequest::is…nvd · 2026-07-31
highCVE-2026-45270: CI4MS is a CodeIgniter 4-based content management system skeleton. Prior to version 0.31.9.0, …nvd · 2026-07-20
mediumCVE-2026-45139: CI4MS is a CodeIgniter 4-based content management system skeleton. Prior to version 0.31.9.0, …nvd · 2026-07-20
mediumCVE-2026-45138: CI4MS is a CodeIgniter 4-based content management system skeleton. Prior to version 0.31.9.0, …nvd · 2026-07-20

CVE-2026-63221: 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 ignor

Details

Exploitation outlook

Referenced CVEs

Recent advisories for CodeIgniter is a

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