CVE-2026-4233 ThingsGateway download path traversal
Remote attackers can exploit a path traversal flaw in the file download API to read arbitrary files from the server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4233?
CVE-2026-4233 is a medium-severity path traversal vulnerability in ThingsGateway, published on 16 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was identified in ThingsGateway 12. This affects an unknown part of the file /api/file/download. The manipulation of the argument fileName leads to path traversal. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-22
Which versions are affected by CVE-2026-4233?
How do I fix CVE-2026-4233?
No fix has been published for CVE-2026-4233 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-4233 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4233 exists.
Sources
Also known as GHSA-c72j-jqf3-28p7.