vulnerability / NVI-00007891 / Revision 3
CodeIgniter: SQL injection in Query Builder deleteBatch() when used with where() conditions
OSV carries this publisher advisory for codeigniter4/framework. This is an aggregated source copy; consult the original publisher and compare update dates.
This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.
01 / Meaning
Why it matters
Published affected context helps an owner decide what evidence to gather. This report has not examined your application.
9.4 CRITICAL (3.1)
security-advisories@github.com severity; no combined Null risk score.
0.612%
FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.49364. Missing scores are unknown.
As of · FIRST EPSS
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
codeigniter4/framework
source listedECOSYSTEM: introduced 4.3.0; fixed 4.7.4
### Impact A SQL injection vulnerability exists in the Query Builder's `deleteBatch()` method. When `deleteBatch()` is used together with `where()` conditions, the bound values from the `WHERE` clause are substituted directly into the generated SQL **with their escape flag ignored**, so they are never escaped or quoted. If an application passes user-controlled input to `where()` before calling `deleteBatch()`, that input is interpreted as SQL rather than as a value, allowing SQL injection. This affects only the `deleteBatch()` code path. Regular `delete()` operations escape `where()` binds correctly. ### Patches Upgrade to v4.7.4 or later. ### Workarounds If you cannot upgrade immediately: - Strictly validate and cast values (e.g. numeric IDs) before using them in conditions - though this does not fully protect string conditions. - Do not pass user-controlled input to `where()` when using `deleteBatch()`. - For user-controlled conditions, use a normal `delete()` with Query Builder binds instead of `deleteBatch(`). - Where possible, express required matching values through the batch data and `onConstraint()` rather than as separate user-controlled `where()` clauses.
03 / Response
What to do next
- vendor patch
The original advisory lists fixed boundaries 4.7.4 for codeigniter4/framework. Confirm the publisher’s latest guidance.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database via OSV
- investigate
Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. FIRST EPSS
A fixed release is not deployment evidence.
Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.
04 / Limits
What this report cannot establish
- Customer inventory, deployment, reachability and exploitation have not been inspected.
- NVD lastModified does not establish freshness of every associated CPE record.
05 / Provenance
Sources you can inspect
Each assertion retains its source. Mirrored records may repeat one underlying publisher; additional links are not independent corroboration.
- GHSA-c9w5-rwh3-7pm9 ↗
GitHub Advisory Database via OSV · vendor advisory
Observed . GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.
- CVE-2026-63221 ↗
NIST National Vulnerability Database · official catalog
Observed . This product uses data from the NVD API but is not endorsed or certified by the NVD.
- CVE-2026-63221 ↗
FIRST EPSS · official catalog
Observed . FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.
Public revision history
Only published revisions appear here. Routine fetches do not create a material-change event.
- Revision 3 ·
Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.
- Revision 2 ·
Source facts changed; compare the preserved prior revision.
- Revision 1 ·
First indexed by Null; source disclosure date is shown separately.