CVE-2025-35430 CISA Thorium insecure downloaded file path validation
A remote authenticated attacker can access arbitrary files via inadequate path validation in CISA Thorium.
- 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-2025-35430?
CVE-2025-35430 is a medium-severity path traversal vulnerability in CISA Thorium, published on 17 Sep 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
CISA Thorium does not adequately validate the paths of downloaded files via 'download_ephemeral' and 'download_children'. A remote, authenticated attacker could access arbitrary files subject to file system permissions. Fixed in 1.1.2.
Weakness: CWE-22
Which versions are affected by CVE-2025-35430?
It affects 1 product.
Products include Cisa Thorium.
How do I fix CVE-2025-35430?
No fix has been published for CVE-2025-35430 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-2025-35430 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-35430 exists.
Other vulnerabilities in CISA Thorium
- CVE-2025-35432 CISA Thorium does not rate limit account verification email messages
- CVE-2025-35436 CISA Thorium account verification email error handling
- CVE-2025-35431 CISA Thorium LDAP injection
- CVE-2025-35435 CISA Thorium download stream divide by zero
- CVE-2025-35433 CISA Thorium does not properly invalidate previously used tokens
Sources
Also known as GHSA-683m-m6wg-rhf3.