Description
Simply Schedule Appointments is vulnerable to unauthenticated Stored Cross-Site Scripting in all versions up to and including 1.6.12.2. The root cause is a sanitization-ordering defect: the rendered notification content is decoded back into live HTML after it has already passed through the Simply Schedule Appointments WordPress plugin before 1.6.12.4-s wp_kses_post() filter, so a double-encoded payload survives intake and is reintroduced as an executable element at render time.
CVSS 6.1EPSS 0.149%Risk 0.62
View source- Published
- 2026-07-27 07:16:25
- Affected versions
- <=1.6.12.2
- Type
- Web application
- Last modified
- 2026-07-27 20:33:01
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N