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CVE-2023-1869 YourChannel <= 1.2.5 - Authenticated (Administrator+) Stored Cross-Site Scripting

Medium 5.5 Published Updated

Administrators can inject arbitrary scripts via settings in this WordPress plugin, affecting multi-site or restricted HTML installations.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-1869?

CVE-2023-1869 is a medium-severity cross-site scripting vulnerability in pluginbuilders YourChannel: Everything you want in a YouTube plugin., published on 5 Apr 2023. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

The YourChannel plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in versions up to, and including, 1.2.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrative-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Weakness: CWE-79

Which versions are affected by CVE-2023-1869?

It affects 1 product.

Products include Plugin Yourchannel.

How do I fix CVE-2023-1869?

No fix has been published for CVE-2023-1869 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-2023-1869 being exploited?

There is no known exploitation of CVE-2023-1869 in the wild and no public exploit code.

Sources

Also known as GHSA-r6p9-mgqc-wrwp.

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