PaperCut NG/MF: Path Traversal in Shared Account Synchronization

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Summary

CVECVE-2026-6418
StatePUBLISHED
AssignerPaperCut
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-05 07:16:00 UTC
Updated2026-05-05 07:16:00 UTC
DescriptionAn 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.

Risk And Classification

Primary CVSS: v4.0 4.6 MEDIUM from eb41dac7-0af8-4f84-9f6d-0272772514f4

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-36 | CWE-552 | CWE-36 CWE-36 Absolute path traversal | CWE-552 CWE-552 Files or directories accessible to external parties

VersionSourceTypeScoreSeverityVector
4.0eb41dac7-0af8-4f84-9f6d-0272772514f4Secondary4.6MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/C...
4.0CNACVSS4.6MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
High
User Interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Sub Conf.
High
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA PaperCut PaperCut NG/MF affected 25.0.11 semver Not specified

References

ReferenceSourceLinkTags
www.papercut.com/kb/Main/papercut-ng-mf-and-papercut-hive-security-bulletin-ma... eb41dac7-0af8-4f84-9f6d-0272772514f4 www.papercut.com
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