CrowdSecLive Exploit Tracker
Limited ExploitationCVE-2026-6377Public Exploit

CSM (Customer Service Management) - Path Traversal (CVE-2026-6377)

PublishedSep 7, 2026
First SeenOct 21, 2026
Last Seen
Reported
CVSS7.5
NI
Next4Biz Information Technologies Inc.CSM (Customer Service Management)
enterprise_softwareweb_application

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.

psychologyCrowdSec Analysis

CVE-2026-6377 is a high-severity path traversal vulnerability in Next4Biz CSM (Customer Service Management), affecting versions from 6.8.9 to before 8.0.3. Because the flaw is remotely exploitable without authentication, attackers may access files outside restricted directories and expose sensitive information.

CrowdSec has been tracking this vulnerability and its exploits since 20th of October 2026.

CrowdSec has not observed any significant exploitation activity targeting CVE-2026-6377 across its network. As a result, no community-driven trend analysis is available for this vulnerability at this time.

Attackers target /Handlers/DownloadFileHandler.ashx and provide an absolute Windows file path in the file parameter to attempt unauthenticated arbitrary file reads.

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EventDate
CVE Published2026-09-07
Rule Released2026-10-20

Related Weaknesses

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

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External References