The Newsletter plugin for WordPress has a security issue that allows hackers to inject harmful code into emails. This can happen if the administrator settings are not properly checked and filtered. This vulnerability only affects websites with multiple installations or those that have disabled certain security measures.
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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