CVE-2020-35240 Cross-site scripting in n/a

Medium 4.8 Published Updated

An attacker can inject malicious scripts into blog content to steal user cookies, potentially leading to account takeover.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2020-35240?

CVE-2020-35240 is a medium-severity cross-site scripting vulnerability in n/a, published on 30 Dec 2020. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

FluxBB 1.5.11 is affected by cross-site scripting (XSS in the Blog Content component. This vulnerability can allow an attacker to inject the XSS payload in "Blog Content" and each time any user will visit the blog, the XSS triggers and the attacker can able to steal the cookie according to the crafted payload.

Weakness: CWE-79

Which versions are affected by CVE-2020-35240?

It affects 1 product.

Products include Fluxbb Fluxbb.

How do I fix CVE-2020-35240?

No fix has been published for CVE-2020-35240 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-2020-35240 being exploited?

There is no known exploitation of CVE-2020-35240 in the wild and no public exploit code.

Sources

Also known as GHSA-gq4f-x93r-43mj.

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