The Frontend Post WordPress Plugin WordPress plugin through 2.8.4 does not validate an attribute of one of its shortcode, which could allow users with a role as low as contributor to add a malicious shortcode to a page/post, which will redirect users to an arbitrary domain.
The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.
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https://wpscan.com/vulnerability/6e222018-a3e0-4af0-846c-6f00b67dfbc0 | exploit vdb entry third party advisory technical description |