CVE-2026-63221Network attack vector

SQL injection via unescaped deleteBatch WHERE binds

Published Jul 31, 2026 · Updated Jul 31, 2026

SQL injection in CodeIgniter 4 4.3.0 through 4.7.3 allows remote attackers to execute SQL through deleteBatch() where() conditions. Query Builder substitutes bound WHERE values directly into generated SQL while ignoring their escape flags, leaving them unquoted and executable as SQL syntax. Exploitation requires an application to pass user-controlled input to where() before deleteBatch(); regular delete() calls are unaffected.

CVSS severity9.4
Critical
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in CodeIgniter 4 4.3.0 through 4.7.3 allows remote attackers to execute SQL through deleteBatch() where() conditions. Query Builder substitutes bound WHERE values directly into generated SQL while ignoring their escape flags, leaving them unquoted and executable as SQL syntax. Exploitation requires an application to pass user-controlled input to where() before deleteBatch(); regular delete() calls are unaffected.

The record

CVE
CVE-2026-63221
Published
Jul 31, 2026
Updated
Jul 31, 2026
Vendor
CodeIgniter Foundation
Product
CodeIgniter 4
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 31, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 4.3.0, < 4.7.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CodeIgniter Foundation · CodeIgniter 4version=>= 4.3.0, < 4.7.4

Published CVSS scores

9.4GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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