CVE-2022-4761 Post Views Count <= 3.0.2 - Contributor+ Stored XSS in Shortcode

Medium 6.8 Published Updated

Contributors can inject malicious scripts via shortcode attributes in the Post Views Count plugin, leading to stored XSS 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-2022-4761?

CVE-2022-4761 is a medium-severity cross-site scripting vulnerability in Unknown Post Views Count (Support caching plugins!), published on 21 Feb 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

The Post Views Count WordPress plugin through 3.0.2 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

Which versions are affected by CVE-2022-4761?

It affects 1 product.

Products include Post Views Count Project Post Views Count.

How do I fix CVE-2022-4761?

No fix has been published for CVE-2022-4761 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-2022-4761 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4761 exists.

Sources

Also known as GHSA-4c5q-83qw-92cx.

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