CVE-2026-56809Network attack vector

Browser script execution via crafted URL

Published Jun 30, 2026 · Updated Aug 31, 2026

Reflected XSS in Ricoh Web Image Monitor allows remote attackers to run arbitrary script in a user's browser through a crafted URL. The public advisories do not disclose which request parameter or output-generation path fails to neutralize attacker-controlled input. Exploitation requires a user to open the crafted URL, after which the script runs in the browser context of the device interface.

CVSS severity5.1
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Ricoh Web Image Monitor allows remote attackers to run arbitrary script in a user's browser through a crafted URL. The public advisories do not disclose which request parameter or output-generation path fails to neutralize attacker-controlled input. Exploitation requires a user to open the crafted URL, after which the script runs in the browser context of the device interface.

The record

CVE
CVE-2026-56809
Published
Jun 30, 2026
Updated
Aug 31, 2026
Vendor
Ricoh Company, Ltd.
Product
Web Image Monitor
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 31, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=see the information provided by the vendor

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ricoh Company, Ltd. · Web Image Monitorversion=see the information provided by the vendor

Published CVSS scores

6.1JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.1JPCERT/CCCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Cross-site scripting (XSS)
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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