{"id":"CVE-2026-111706","title":"99AI through 4.3.0 Unauthenticated Information Disclosure via chatLog exportExcel","summary":"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, a…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cvssSource":"cna","cwe":["CWE-306"],"vendor":"vastxie","product":"99AI","affected":["99AI <= 4.3.0"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-16T20:52:41.729124Z"},"published":"2026-10-16","updated":"2026-10-16","sourceUpdated":"2026-10-16T21:16:51.203Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111706","references":[{"url":"https://hackmd.io/@hieuPenguinnn/99ai-chatlog-unauth-export-and-idor"},{"url":"https://github.com/vastxie/99AI/blob/v4.3.0/service/src/modules/chatLog/chatLog.controller.ts#L47-L52"},{"url":"https://github.com/vastxie/99AI/blob/v4.3.0/service/src/modules/chatLog/chatLog.service.ts#L104-L155"},{"url":"https://github.com/vastxie/99AI"},{"url":"https://www.vulncheck.com/advisories/99ai-through-4.3.0-unauthenticated-information-disclosure-via-chatlog-exportexcel","label":"VulnCheck Advisory: 99AI through 4.3.0 Unauthenticated Information Disclosure via chatLog exportExcel"}],"tags":["cve.org"],"ingestedAt":"2026-10-16T18:43:08.651Z","slug":"CVE-2026-111706","body":"## Overview\n\n99AI 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.\n\n## Affected\n\n- `99AI <= 4.3.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}