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The Photo Gallery, Sliders, Proofing and WordPress plugin before 4.5.0 does not correctly validate the extensions of files extracted from an uploaded archive, due to a variable being reused as a loop counter so that the check always passes, allowing users granted its gallery-management capability by an administrator to write arbitrary files into a web-accessible directory and, on hosts that execute them, run arbitrary code.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Nextgen Gallery Plugin | — | Update nextgen-gallery plugin to version 4.5.0, or a newer patched version | Oct 30, 2026 | Sep 18, 2026 |
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