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CVE-2026-4794: CWE-79 Improper neutralization of input during web page generation ('cross-site scripting') in PaperCut PaperCut NG/MF

0
Low
VulnerabilityCVE-2026-4794cvecve-2026-4794cwe-79
Published: Tue Mar 31 2026 (03/31/2026, 00:39:56 UTC)
Source: CVE Database V5
Vendor/Project: PaperCut
Product: PaperCut NG/MF

Description

CVE-2026-4794 is a low-severity cross-site scripting (XSS) vulnerability in PaperCut NG/MF versions before 25. 0. 10. It allows authenticated administrator users to inject arbitrary web script or HTML code via various UI fields. Exploitation requires an active administrator login session and could lead to compromise of other administrators' sessions or unauthorized actions within the administrator's context. No patch or official fix information is provided in the available data.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 04/07/2026, 10:55:52 UTC

Technical Analysis

This vulnerability involves multiple XSS issues in PaperCut NG/MF prior to version 25.0.10. Authenticated administrators can inject malicious scripts through different user interface fields, potentially affecting other administrators by hijacking sessions or performing unauthorized actions. The CVSS 4.0 base score is 2.1, indicating low severity, with attack vector network, low attack complexity, and partial privileges required. The vulnerability does not affect confidentiality, integrity, or availability directly but impacts security through session compromise or unauthorized administrative actions.

Potential Impact

The impact is limited to authenticated administrator users who can exploit the XSS flaws to inject scripts that may compromise other administrators' sessions or perform unauthorized actions within the administrative interface. There is no indication of exploitation in the wild or broader impact beyond the administrative context.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, administrators should monitor PaperCut's advisories for updates. Until a fix is available, restrict administrator access to trusted users and consider additional controls to limit exposure to this vulnerability.

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Technical Details

Data Version
5.2
Assigner Short Name
PaperCut
Date Reserved
2026-03-25T00:52:13.130Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 69cb1e82e6bfc5ba1d9722d0

Added to database: 3/31/2026, 1:08:18 AM

Last enriched: 4/7/2026, 10:55:52 AM

Last updated: 5/15/2026, 5:08:36 AM

Views: 81

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