CVE-2025-6152 Steel Browser files.routes.ts handleFileUpload path traversal
Remote attackers can exploit a path traversal flaw in Steel Browser's file upload handler to read or modify arbitrary files on the system.
- 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-2025-6152?
CVE-2025-6152 is a medium-severity path traversal vulnerability in Steel Browser, published on 17 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability, which was classified as critical, was found in Steel Browser up to 0.1.3. This affects the function handleFileUpload of the file api/src/modules/files/files.routes.ts. The manipulation of the argument filename leads to path traversal. It is possible to initiate the attack remotely. The patch is named 7ba93a10000fb77ee01731478ef40551a27bd5b9. It is recommended to apply a patch to fix this issue.
Weakness: CWE-22
Which versions are affected by CVE-2025-6152?
It affects 1 product.
Products include Steel Browser.
How do I fix CVE-2025-6152?
No fix has been published for CVE-2025-6152 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-2025-6152 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6152 exists.
Sources
Also known as GHSA-wcpr-fw9g-mjcm.