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PaperCut MF < 25.0.5 Session Hijacking (CVE-2026-5115)

medium Nessus Plugin ID 310444

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Synopsis

PaperCut MF installed on the remote Windows host is affected by a session hijacking vulnerability.

Description

The version of PaperCut MF installed on the remote Windows host is prior to 25.0.5. It is, therefore, affected by a vulnerability:

 - The PaperCut MF embedded application for Konica Minolta devices is vulnerable to session hijacking. The communication channel between the embedded application and the server was insecure, which could leak data including sensitive information that may be used to mount an attack on the device. (CVE-2026-5115)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to PaperCut MF version 25.0.5 or later.

See Also

http://www.nessus.org/u?351d505c

Plugin Details

Severity: Medium

ID: 310444

File Name: papercut_mf_25_0_5.nasl

Version: 1.2

Type: Local

Agent: windows

Family: Windows

Published: 4/27/2026

Updated: 4/28/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2026-5115

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 3.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

Vulnerability Information

CPE: cpe:/a:papercut:papercut_mf

Required KB Items: SMB/Registry/Enumerated, installed_sw/PaperCut MF

Exploit Ease: No known exploits are available

Patch Publication Date: 3/31/2026

Vulnerability Publication Date: 3/31/2026

Reference Information

CVE: CVE-2026-5115