CVE-2026-111646

Medium

Description

SurveyKing before 1.13.0 contains a missing authorization vulnerability that allows unauthenticated attackers to download any stored file by id through GET /api/public/preview/{attachmentId}. Attackers who know or derive time-ordered snowflake file ids can bypass shared, owner, and project checks in FileServiceImpl.loadFile to read private survey attachments and respondent uploads.

SeverityMedium

CVSS5.9

Exploit probability—

ProductSurveyKing

PublishedOct 16, 2026

First seenOct 16, 2026

Weakness typeCWE-862Missing authorization

How to fix

Update

javahuang SurveyKing1.13.0 or later

Patches

github.com/javahuang/SurveyKing/commit/9489171d53e55ace2856a91af38034665c0064a4

Affected products

Product	Affected versions	Fixed in
javahuang SurveyKing	v < 1.13.0	1.13.0

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