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CVE-2026-111706— 99AI through 4.3.0 Unauthenticated Information Disclosure via chatLog exportExcel

Quick assessment

Affected
vastxie 99AI
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

99AI 4.3.0 及以下版本在 接口中存在身份验证缺失漏洞，允许未授权攻击者导出所有用户的聊天记录。攻击者可构造包含受控的分页参数（page）、每页数量（size）以及可选邮箱（email）字段的请求，下载包含用户名、邮箱、提示词（prompts）和 AI 回复内容的 XLSX 文件。

CVSS 7.5 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
vastxie 99AI ≤ 4.3.0 affected
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I. Basic Information for CVE-2026-111706

Vulnerability Information
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Vulnerability Title
99AI through 4.3.0 Unauthenticated Information Disclosure via chatLog exportExcel
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
vastxie 99AI 0 ~ 4.3.0 -

II. Public POCs for CVE-2026-111706

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III. Intelligence Information for CVE-2026-111706

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Vendor Advisories for CVE-2026-111706 (1)

Security Blog Posts for CVE-2026-111706 (1)

Other References for CVE-2026-111706 (2)

IV. Related Vulnerabilities

Same product: 99AI
Same vendor: vastxie
Same weakness: CWE-306

V. Comments for CVE-2026-111706

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