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PaperCut NG < 25.0.10 XSS (CVE-2026-4794)

low Nessus Plugin ID 310443

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Synopsis

PaperCut NG installed on the remote Windows host is affected by a cross-site scripting vulnerability.

Description

The version of PaperCut NG installed on the remote Windows host is prior to 25.0.10. It is, therefore, affected by a vulnerability:

 - Multiple cross-site scripting (XSS) vulnerabilities allow authenticated administrator users to inject arbitrary web script or HTML code via different UI fields. This could be used to compromise other administrator's sessions or perform unauthorized actions via the administrator's authenticated context. (CVE-2026-4794)

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 NG version 25.0.10 or later.

See Also

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

Plugin Details

Severity: Low

ID: 310443

File Name: papercut_ng_25_0_10.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: 3.0

CVSS v2

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 3.5

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

CVSS Score Source: CVE-2026-4794

CVSS v3

Risk Factor: Medium

Base Score: 4.8

Temporal Score: 4.2

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

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

CVSS v4

Risk Factor: Low

Base Score: 2.1

Threat Score: 0.5

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: cpe:/a:papercut:papercut_ng

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/31/2026

Vulnerability Publication Date: 3/31/2026

Reference Information

CVE: CVE-2026-4794