CVE-2021-41563 Tad Book3 - Stored XSS

Medium 6.1 Published Updated

Unauthenticated attackers can inject JavaScript into the book editing function, leading to stored XSS attacks.

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-2021-41563?

CVE-2021-41563 is a medium-severity cross-site scripting vulnerability in Tad Book3, published on 8 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

Tad Book3 editing book function does not filter special characters. Unauthenticated attackers can remotely inject JavaScript syntax and execute stored XSS attacks.

Weakness: CWE-79

Which versions are affected by CVE-2021-41563?

It affects 1 product.

Products include Tad Book3 Project Tad Book3.

How do I fix CVE-2021-41563?

No fix has been published for CVE-2021-41563 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-2021-41563 being exploited?

There is no known exploitation of CVE-2021-41563 in the wild and no public exploit code.

Sources

Also known as GHSA-6p96-35cj-r28v.

Is CVE-2021-41563 in your software?

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