| Titel | liweiyi ChestnutCMS <=1.5.8 Unrestricted Upload |
|---|
| Beschreibung | In the /dev-api/common/upload endpoint, there is a flaw in the file extension extraction logic before the FilenameUtils.getExtension method is called. The system performs a special parsing operation on the file path to extract the suffix. If the filename contains specific characters (:// and wx_fmt=), the logic extracts the value between wx_fmt= and & (or the end of the string) as the file extension. Attackers can manipulate this behavior to bypass file extension restrictions. |
|---|
| Quelle | ⚠️ https://github.com/yuccun/CVE/blob/main/ChestnutCMS-Arbitrary_File_Upload.md |
|---|
| Benutzer | yuccun (UID 93614) |
|---|
| Einreichung | 19.12.2025 04:03 (vor 6 Monaten) |
|---|
| Moderieren | 21.12.2025 13:51 (2 days later) |
|---|
| Status | Akzeptiert |
|---|
| VulDB Eintrag | 337715 [liweiyi ChestnutCMS bis 1.5.8 Filename /dev-api/common/upload FilenameUtils.getExtension Datei erweiterte Rechte] |
|---|
| Punkte | 20 |
|---|