The GTM Server Side plugin for WordPress has a security issue called Reflected Cross-Site Scripting. This is because the plugin uses a method called add_query_arg, which does not properly protect the URL. This means that anyone, even without an account, can add harmful code to a page if they can get a user to click on a link.
This information is sourced from www.wpvulnerability.com. An open-source database of vulnerabilities maintained by the community. Help us out by submitting vulnerabilities!
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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