CVE-2026-56809
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedMultiple 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceRicoh Web Image Monitor in multiple laser printers and MFPs contains a reflected cross-site scripting (XSS) vulnerability. An attacker can embed malicious JavaScript into a crafted URL that, when clicked by a user, reflects the payload back and executes it in the user's browser within the context of the vulnerable web application.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the Ricoh device modelAccess the device control panel or check the device label to confirm it is a Ricoh laser printer or MFP. Alternatively, access the Web Image Monitor login page and check for Ricoh branding/model information in the interface header or footer.Affected if The device is a Ricoh laser printer or MFP that includes the Web Image Monitor web interface feature.
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Confirm Web Image Monitor is enabledAttempt to access the Web Image Monitor interface by entering the device's IP address in a web browser (e.g., http://[device-ip]). If a login page or device status page loads, the feature is enabled.Affected if Web Image Monitor is accessible and responds to HTTP/HTTPS requests on the network.
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Check firmware versionLog into Web Image Monitor as administrator and navigate to the Device Information or System Settings section to view the installed firmware version. Alternatively, print a configuration page from the device control panel to view firmware information.Affected if The installed firmware version matches any version range specified in Ricoh's security advisory for CVE-2026-56809. If no version is specified, the device may be affected unless patched.
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Verify network exposure of the interfaceDetermine if the Web Image Monitor web interface is accessible from networks outside the trusted internal network. Check router/firewall rules and device IP configuration to see if HTTP/HTTPS ports (typically 80/443) are open to untrusted networks or the internet.Affected if The Web Image Monitor interface is exposed to untrusted networks or the internet, increasing the risk that attackers can trick users into clicking malicious crafted URLs.
A user is affected if their Ricoh laser printer or MFP has Web Image Monitor enabled and the installed firmware version matches the affected versions listed in the vendor advisory for CVE-2026-56809, particularly if the interface is accessible to users who could click untrusted links.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply vendor-supplied firmware patches when available; until then, users should avoid clicking untrusted links accessing the Web Image Monitor interface.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-56809 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-56809 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data