The CoolClock WordPress plugin before 4.3.5 does not escape some shortcode attributes, allowing users with a role as low as Contributor toperform Stored Cross-Site Scripting attacks
CVSS 3.1MEDIUM 5.4·Network·Low privileges·User interaction·EPSS 0.00624·Published 2021-09-27·Fixed in 4.3.5CWE-79