CVE-2026-4794— Multiple cross-site scripting (XSS) vulnerabilities in PaperCut NG/MF
Quick assessment
Affected
PaperCut PaperCut NG/MF
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
PaperCut NG/MF是PaperCut公司的一个打印管理系统。 PaperCut NG/MF 25.0.10之前版本存在安全漏洞，该漏洞源于多个UI字段存在跨站脚本漏洞，可能导致注入任意Web脚本或HTML代码，进而危害其他管理员会话或在已验证环境中执行未授权操作。
Possible ATT&CK Techniques 1 AI
T1054
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I. Basic Information for CVE-2026-4794
Vulnerability Information
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Vulnerability Title
Multiple cross-site scripting (XSS) vulnerabilities in PaperCut NG/MF
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple cross-site scripting (XSS) vulnerabilities in PaperCut NG/MF before 25.0.10 allow authenticated administrator users to inject arbitrary web script or HTML code via different UI fields. This could be used to compromise other admininistrator's sessions or perform unauthorized actions via the administrator's authenticated context (e.g. requires an active login session).
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
PaperCut NG/MF 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PaperCut NG/MF是PaperCut公司的一个打印管理系统。 PaperCut NG/MF 25.0.10之前版本存在安全漏洞，该漏洞源于多个UI字段存在跨站脚本漏洞，可能导致注入任意Web脚本或HTML代码，进而危害其他管理员会话或在已验证环境中执行未授权操作。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| PaperCut | PaperCut NG/MF | 0 ~ 25.0.10 | - |
|
II. Public POCs for CVE-2026-4794
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
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Same weakness: CWE-79
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