NextGEN Gallery version prior to 4.2.1 are vulnerable to authenticated SQL injection via the 'orderby' parameter on the REST API endpoints '/imagely/v1/galleries' and '/imagely/v1/albums'.
The root cause is an insufficient sanitization function ('_clean_column()') in the data mapper layer that uses a character blacklist instead of a whitelist approach. This allows an authenticated attacker with the 'NextGEN Gallery overview' capability (assigned to the Administrator role by default) to inject arbitrary SQL into the 'ORDER BY' clause.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Nextgen Gallery Plugin | — | Update nextgen-gallery plugin to version 4.2.1, or a newer patched version | Jul 31, 2026 | May 20, 2026 |
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