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CVE-2026-56809

Quick assessment

Affected
Ricoh Company, Ltd. Multiple laser printers and MFPs which implement Ricoh Web Image Monitor
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.

RICOH im c4500是日本RICOH公司的一款彩色多功能打印机。 RICOH im c4500存在跨站脚本漏洞，该漏洞源于包含反射型跨站脚本漏洞，可能导致任意脚本在访问Web Image Monitor用户的web浏览器上执行。

CVSS 5.1 · Medium EPSS 0.34% · P25

Affected Version Matrix 2

VendorProduct Version RangeStatus
Konica Minolta Japan, Inc. Multiple MFPs which implement Ricoh Web Image Monitor see the information provided by the vendor affected
Ricoh Company, Ltd. Multiple laser printers and MFPs which implement Ricoh Web Image Monitor see the information provided by the vendor affected
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I. Basic Information for CVE-2026-56809

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple laser printers and MFPs (multifunction printers) which implement Ricoh Web Image Monitor contain a reflected cross-site scripting vulnerability. An arbitrary script may be executed on the web browser of the user who accesses a crafted URL.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/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
RICOH im c4500 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RICOH im c4500是日本RICOH公司的一款彩色多功能打印机。 RICOH im c4500存在跨站脚本漏洞，该漏洞源于包含反射型跨站脚本漏洞，可能导致任意脚本在访问Web Image Monitor用户的web浏览器上执行。
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
Ricoh Company, Ltd. Multiple laser printers and MFPs which implement Ricoh Web Image Monitor see the information provided by the vendor -
Konica Minolta Japan, Inc. Multiple MFPs which implement Ricoh Web Image Monitor see the information provided by the vendor -

II. Public POCs for CVE-2026-56809

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III. Intelligence Information for CVE-2026-56809

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Vendor Advisories for CVE-2026-56809 (3)

Other References for CVE-2026-56809 (1)

IV. Related Vulnerabilities

Same vendor: Ricoh Company, Ltd.
Same weakness: CWE-79

V. Comments for CVE-2026-56809

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