A file extension handling issue was found in [core] module of ONLYOFFICE DocumentServer v4.0.0-9-v5.6.3. An attacker must request the conversion of the crafted file from PPTT into PPTX format. Using the chain of two other bugs related to improper string handling, a remote attacker can obtain remote code execution on DocumentServer.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Document_server | Onlyoffice | 4.0.0-9 (including) | 5.6.3 (including) |