CVE-2026-6377 Path Traversal in Next4Biz's CSM (Customer Service Management)
Attackers can exploit a path traversal flaw in Next4Biz CSM to read arbitrary files from the server.
- 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-2026-6377?
CVE-2026-6377 is a high-severity path traversal vulnerability in Next4Biz Information Technologies Inc. CSM (Customer Service Management), published on 7 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Next4Biz Information Technologies Inc. CSM (Customer Service Management) allows Path Traversal.
This issue affects CSM (Customer Service Management): from 6.8.9 before 8.0.3.
Weakness: CWE-22
Which versions are affected by CVE-2026-6377?
How do I fix CVE-2026-6377?
No fix has been published for CVE-2026-6377 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-2026-6377 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6377 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-29jq-798g-w68h.