CVE-2021-20805 Cross-site scripting in Cybozu Remote Service
A remote authenticated attacker can inject arbitrary scripts into the management screen of Cybozu Remote Service, potentially compromising user sessions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-20805?
CVE-2021-20805 is a medium-severity cross-site scripting vulnerability in Cybozu, Inc. Cybozu Remote Service, published on 13 Oct 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Cross-site scripting vulnerability in the management screen of Cybozu Remote Service 3.1.7 to 3.1.9 allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.
Weakness: CWE-79
Which versions are affected by CVE-2021-20805?
It affects 1 product.
Products include Cybozu Remote Service Manager.
How do I fix CVE-2021-20805?
No fix has been published for CVE-2021-20805 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-2021-20805 being exploited?
There is no known exploitation of CVE-2021-20805 in the wild and no public exploit code.
Other vulnerabilities in Cybozu, Inc. Cybozu Remote Service
Sources
Also known as GHSA-mgjw-h7c5-hhq4.