CVE-2026-6418

PaperCut NG/MF: Path Traversal in Shared Account Synchronization

MEDIUM
4.9
CVSS Score
Published: May 5, 2026 at 06:21 AM UTC
Updated: June 17, 2026 at 11:00 AM UTC
2 products affected across 1 vendorPapercut NgPaperCut MF

Using PaperCut NG/MF by PaperCut?

Get instant alerts when new vulnerabilities affect PaperCut NG/MF - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM4.9
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

An issue was discovered in the Shared Account Synchronization component of PaperCut MF (version 25.0.4). The application allows administrative users to configure a source path for account data synchronization. Due to a lack of proper path validation and sanitization, an authenticated user with administrative privileges can specify arbitrary file paths on the local file system. This allows for the enumeration of directory structures and the unauthorized reading of sensitive text-based configuration or system files. When the synchronization process is triggered, the application attempts to parse the contents of the specified file, subsequently exposing the data within the application's account management interface. This vulnerability could lead to the disclosure of sensitive system information or configuration details, depending on the permissions of the service account under which the application is running.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 25.0.11
Affected range stops below 25.0.11, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-36CWE-552

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card