Denial of Service vulnerability in Klarna Checkout for WooCommerce 2.13.4

A plugin called Klarna Checkout for WooCommerce on WordPress has a security issue called Denial of Service. This affects all versions up to 2.13.4. The problem is that the plugin’s kco_wc_log_js() function doesn’t limit the size of the debug log. This means that anyone can fill up the log without being logged in, which could take up too much space and cause the website to stop working.

Detected in:

Klarna Checkout for WooCommerce fixed vulnerable versions: >= * <= 2.13.4
Kustom Checkout for WooCommerce fixed vulnerable versions:

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Version compare shows which versions have a vulnerability. For example: >= 2.2.8 <= 2.2.21 means:

> from 2.2.8
= including 2.2.8 & 2.2.21
< to 2.2.21

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