CVE-2026-111646 SurveyKing before 1.13.0 Unauthenticated File Download via /api/public/preview
Unauthenticated attackers can download private survey attachments by guessing file IDs, exposing sensitive respondent data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-111646?
CVE-2026-111646 is a high-severity missing authorization vulnerability in javahuang SurveyKing, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-111646?
How do I fix CVE-2026-111646?
No fix has been published for CVE-2026-111646 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-111646 being exploited?
There is no known exploitation of CVE-2026-111646 in the wild and no public exploit code.
Sources
Also known as GHSA-6fh4-2vv9-2fp2.