CVE-2026-56809 Cross-site scripting in Multiple MFPs which implement Ricoh Web Image Monitor
Reflected XSS in Ricoh Web Image Monitor allows attackers to execute arbitrary scripts in users' browsers via crafted URLs.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-56809?
CVE-2026-56809 is a medium-severity cross-site scripting vulnerability in Konica Minolta Japan, Inc. Multiple MFPs which implement Ricoh Web Image Monitor, published on 30 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-56809?
How do I fix CVE-2026-56809?
No fix has been published for CVE-2026-56809 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-56809 being exploited?
There is no known exploitation of CVE-2026-56809 in the wild and no public exploit code.
Sources
Also known as GHSA-wvcg-328f-hx5j.