CVE-2022-4668: The Easy Appointments WordPress plugin before 3.11.2 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as lo...

Summary

The Easy Appointments WordPress plugin before 3.11.2 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privil...

What to do

Update easy-appointments easy_appointments to version 3.11.2 or later.

Affected software

Vendor	Product	Affected versions
easy-appointments	easy_appointments	< 3.11.2 `cpe:2.3:a:easy-appointments:easy_appointments::::::wordpress::*`

Original advisory text

The Easy Appointments WordPress plugin before 3.11.2 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as lo...

The Easy Appointments WordPress plugin before 3.11.2 does not validate and escape some of its shortcode attributes before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

References

https://wpscan.com/vulnerability/3e43156a-b784-4066-be69-23b139aafbad Exploit Third Party Advisory