CVE-2021-20771 Cross-site scripting in Cybozu Garoon
Remote attackers can inject arbitrary scripts into the E-Mail function of Cybozu Garoon, potentially compromising user sessions or data.
- 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-2021-20771?
CVE-2021-20771 is a medium-severity cross-site scripting vulnerability in Cybozu Garoon, published on 18 Aug 2021. 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
Cross-site scripting vulnerability in some functions of E-Mail of Cybozu Garoon 4.0.0 to 5.5.0 allows a remote attacker to inject an arbitrary script via unspecified vectors.
Weakness: CWE-79
Which versions are affected by CVE-2021-20771?
It affects 1 product.
Products include Cybozu Garoon.
How do I fix CVE-2021-20771?
No fix has been published for CVE-2021-20771 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-2021-20771 being exploited?
There is no known exploitation of CVE-2021-20771 in the wild and no public exploit code.
Other vulnerabilities in Cybozu Garoon
Sources
Also known as GHSA-7r69-2g79-crx9.