The Knews Multilingual Newsletters plugin for WordPress is not secure in versions up to and including 1.1.0. If someone can get someone else to click on a link, they can inject malicious scripts into pages which can be used to gain access to the website. To protect your website, you should upgrade to a newer version of the plugin.
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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