CVE-2021-20631 Missing authorization in Cybozu Office

Medium 6.5 Published Updated

Authenticated attackers can alter Custom App data in Cybozu Office due to improper input validation, requiring a security patch.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-20631?

CVE-2021-20631 is a medium-severity missing authorization vulnerability in Cybozu Office, published on 18 Mar 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Improper input validation vulnerability in Custom App of Cybozu Office 10.0.0 to 10.8.4 allows authenticated attacker to alter the data of Custom App via unspecified vectors.

Weakness: CWE-20

Which versions are affected by CVE-2021-20631?

It affects 1 product.

Products include Cybozu Office.

How do I fix CVE-2021-20631?

No fix has been published for CVE-2021-20631 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-20631 being exploited?

There is no known exploitation of CVE-2021-20631 in the wild and no public exploit code.

All Cybozu Office vulnerabilities

Sources

Also known as GHSA-7m7w-wrm8-m78q.

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