The WP Spell Check WordPress plugin before 9.13 does not escape ignored words, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)
Cross-site request forgery (CSRF) vulnerability in WP Spell Check 7.1.9 and earlier allows remote attackers to hijack the authentication of administrators via unspecified vectors.