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CVE-2021-24768 WP RSS Aggregator < 4.19.2 - Admin+ Stored Cross-Site Scripting

Medium 4.8 Published Updated

High-privilege users can inject malicious HTML into the Blacklist URL field, leading to stored Cross-Site Scripting attacks.

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-2021-24768?

CVE-2021-24768 is a medium-severity cross-site scripting vulnerability in Unknown WP RSS Aggregator – News Feeds, Autoblogging, Youtube Video Feeds and More, published on 29 Nov 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

The WP RSS Aggregator WordPress plugin before 4.19.2 does not properly sanitise and escape the URL to Blacklist field, allowing malicious HTML to be inserted by high privilege users even when the unfiltered_html capability is disallowed, which could lead to Cross-Site Scripting issues.

Weakness: CWE-79

Which versions are affected by CVE-2021-24768?

It affects 1 product.

Products include Wprssaggregator Wp Rss Aggregator.

How do I fix CVE-2021-24768?

No fix has been published for CVE-2021-24768 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-2021-24768 being exploited?

There is no known exploitation of CVE-2021-24768 in the wild and no public exploit code.

Sources

Also known as GHSA-4q83-54pp-rmxj.

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