Ef4

**Name of the Vulnerable Software and Affected Versions** Seafile versions prior to 6.2.12 **Description** The issue makes it easier to conduct chosen-plaintext attacks or dictionary attacks due to the use of the same Initialization Vector (IV) with Cipher Block Chaining (CBC) Mode to encrypt private data. **Recommendations** For versions prior to 6.2.12, update to version 6.2.12 or later to resolve the issue.