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CVE-2022-4667 RSS Aggregator by Feedzy < 4.1.1 - Contributor+ Stored XSS

Medium 5.4 Published Updated

Contributors can inject malicious scripts via block options, potentially compromising admin accounts in the RSS Aggregator by Feedzy plugin.

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-2022-4667?

CVE-2022-4667 is a medium-severity cross-site scripting vulnerability in Unknown RSS Aggregator by Feedzy, published on 30 Jan 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The RSS Aggregator by Feedzy WordPress plugin before 4.1.1 does not validate and escape some of its block options before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

Weakness: CWE-79

Which versions are affected by CVE-2022-4667?

It affects 1 product.

Products include Themeisle Rss Aggregator by Feedzy.

How do I fix CVE-2022-4667?

No fix has been published for CVE-2022-4667 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-2022-4667 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4667 exists.

Sources

Also known as GHSA-rr97-c769-66wm.

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