CVE-2021-3900 Cross-Site Request Forgery (CSRF) in firefly-iii/firefly-iii

Medium 4.3 Published Updated

Attackers can trick authenticated users into performing unintended actions in Firefly III, potentially modifying financial 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-2021-3900?

CVE-2021-3900 is a medium-severity vulnerability in firefly-iii/firefly-iii, published on 27 Oct 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

firefly-iii is vulnerable to Cross-Site Request Forgery (CSRF)

Weakness: CWE-352

Which versions are affected by CVE-2021-3900?

2 open source packages ship an affected version, including grumpydictator/firefly-iii. It affects 1 product.

PackageAffectedFixed in
grumpydictator/firefly-iii PackagistAll versions to 5.6.2None
grumpydictator/firefly-iii PackagistAll versions to 5.6.2None

Products include Firefly-Iii Firefly Iii.

How do I fix CVE-2021-3900?

No fix has been published for CVE-2021-3900 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-3900 being exploited?

There is no known exploitation of CVE-2021-3900 in the wild and no public exploit code.

Sources

Also known as GHSA-pfj7-w373-gqch.

Is CVE-2021-3900 in your software?

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