CVE-2022-4838 Clean Login < 1.13.7 - Contributor+ Stored XSS via Shortcode

Medium 5.4 Published Updated

Contributors can inject malicious scripts via shortcode attributes, potentially compromising admin accounts in the Clean Login WordPress 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-2022-4838?

CVE-2022-4838 is a medium-severity cross-site scripting vulnerability in Unknown Clean Login, published on 6 Feb 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 Clean Login WordPress plugin before 1.13.7 does not validate and escape some of its shortcode attributes 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-2022-4838?

It affects 1 product.

Products include Codection Clean Login.

How do I fix CVE-2022-4838?

No fix has been published for CVE-2022-4838 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-2022-4838 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4838 exists.

Sources

Also known as GHSA-g7f2-pg3w-c5m2.

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