The Mailster plugin for WordPress has a security issue called Reflected Cross-Site Scripting in versions up to 4.0.9. This is because it does not properly clean and protect the information that is entered and displayed. This means that someone who is not authorized can add harmful code into a webpage and make it run 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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