CVE-2021-20749 Cross-site scripting in 'Fudousan plugin' series

Medium 5.4 Published Updated

Remote authenticated attackers can inject arbitrary scripts into the Fudousan real estate plugin, 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-2021-20749?

CVE-2021-20749 is a medium-severity cross-site scripting vulnerability in nendeb 'Fudousan plugin' series, published on 28 Jun 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 Fudousan plugin ver5.7.0 and earlier, Fudousan Plugin Pro Single-User Type ver5.7.0 and earlier, and Fudousan Plugin Pro Multi-User Type ver5.7.0 and earlier allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.

Weakness: CWE-79

Which versions are affected by CVE-2021-20749?

It affects 3 products.

Products include Nendeb Fudousan Plugin, Nendeb Fudousan Plugin Pro Multi-User, Nendeb Fudousan Plugin Pro Single-User.

How do I fix CVE-2021-20749?

No fix has been published for CVE-2021-20749 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-2021-20749 being exploited?

There is no known exploitation of CVE-2021-20749 in the wild and no public exploit code.

Sources

Also known as GHSA-2xw3-pxr3-cr4c.

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