Description
99AI through 4.3.0 contains a missing authentication vulnerability in the POST /api/chatLog/exportExcel route that allows unauthenticated attackers to export all users' chat logs. Attackers can send requests with controlled page, size, and optional email fields to download xlsx files containing usernames, emails, prompts, and AI answers.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| vastxie | 99AI | ≤ 4.3.0 | — |
References
- https://hackmd.io/@hieuPenguinnn/99ai-chatlog-unauth-export-and-idor third-party-advisory
- https://github.com/vastxie/99AI/blob/v4.3.0/service/src/modules/chatLog/chatLog.controller.ts#L47-L52 technical-description
- https://github.com/vastxie/99AI/blob/v4.3.0/service/src/modules/chatLog/chatLog.service.ts#L104-L155 technical-description
- https://github.com/vastxie/99AI product
- VulnCheck Advisory: 99AI through 4.3.0 Unauthenticated Information Disclosure via chatLog exportExcel third-party-advisory