CVE-2025-34154 UnForm Server Manager < 10.1.12 Unauthenticated Arbitrary File Read
Unauthenticated attackers can read arbitrary files on the host system via path traversal in the log analysis interface of UnForm Server Manager.
- 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-2025-34154?
CVE-2025-34154 is a critical path traversal vulnerability in Synergetic Data Systems Inc. UnForm Server Manager, published on 13 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
UnForm Server Manager versions prior to 10.1.12 expose an unauthenticated file read vulnerability via its log file analysis interface. The flaw resides in the arc endpoint, which accepts a fl parameter to specify the log file to be opened. Due to insufficient input validation and lack of path sanitization, attackers can supply relative paths to access arbitrary files on the host system — including sensitive OS-level files — without authentication.
Weakness: CWE-22
Which versions are affected by CVE-2025-34154?
How do I fix CVE-2025-34154?
No fix has been published for CVE-2025-34154 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-2025-34154 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34154 exists.
Sources
Also known as GHSA-4wq8-9vvh-c555.