The Simple Tooltips WordPress plugin before 2.1.4 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks
Exploitability
AV:NAC:LPR:LUI:RScope
S:CImpact
C:LI:LA:N5.4/CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N