EUVD-2026-51397Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
Network SQLi reachable without privileges when an exposed endpoint feeds user input to deleteBatch(); DELETE context limits confidentiality (C:L) while row manipulation drives I:H/A:H.
Primary rating from Vendor (GitHub_M).
CVSS VectorVendor: GitHub_M
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
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.
Articles & Coverage 1
AnalysisAI
SQL injection in CodeIgniter4's Query Builder deleteBatch() method (versions 4.3.0 through 4.7.3) allows user-controlled where() condition values to be interpreted as executable SQL because bound values are substituted into the generated DELETE statement while their escape flags are ignored. Only the deleteBatch() batch-delete path is affected; ordinary delete() operations escape their binds correctly. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the target application to invoke Query Builder's deleteBatch() (the batch-delete path) with an attacker-influenced value passed through a where(), orWhere(), or whereIn() condition on the affected CodeIgniter4 versions 4.3.0-4.7.3. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H, base 9.4) rates this network-exploitable with low complexity and no privileges, which is plausible for a reflected SQLi reachable through an exposed endpoint. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An application exposes a feature that batch-deletes records using Query Builder deleteBatch() with a where() filter derived from a request parameter (for example, deleting a user's job records by name). An unauthenticated or low-privileged attacker submits a value such as anything' OR '1'='1, which is substituted unescaped into the DELETE statement, altering the WHERE clause to match and destroy unintended rows or otherwise inject SQL. … |
| Remediation | Vendor-released patch: 4.7.4 - upgrade the codeigniter4/codeigniter4 dependency to 4.7.4 or later (composer update codeigniter4/framework) as the primary and definitive fix, per GHSA-c9w5-rwh3-7pm9 and the release at https://github.com/codeigniter4/CodeIgniter4/releases/tag/v4.7.4. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all applications and servers running CodeIgniter 4 versions 4.3.0 through 4.7.3 and assess which expose deleteBatch() functionality to user input. …
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