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The Iptanus File Upload WordPress plugin before 5.1.7 does not implement proper file handling when the duplicatepolicy setting is configured to "maintain both." Due to a Time-of-Check to Time-of-Use (TOCTOU) race condition between the file existence check and the actual file write operation, an authenticated attacker can overwrite files uploaded by other users.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Wp File Upload Plugin | — | Update wp-file-upload plugin to version 5.1.7, or a newer patched version | Oct 30, 2026 | May 24, 2026 |
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