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.
Metrics
Affected Vendors & Products
References
History
Mon, 27 Jul 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-79 | |
| Metrics |
cvssV3_1
|
Mon, 27 Jul 2026 06:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Simply Schedule Appointments < 1.6.12.4 - Unauthenticated Stored XSS via Booking Customer Information | |
| References |
|
Status: PUBLISHED
Assigner: WPScan
Published:
Updated: 2026-07-27T13:53:58.533Z
Reserved: 2026-06-26T08:35:42.471Z
Link: CVE-2026-13400
Updated: 2026-07-27T13:53:54.357Z
No data.
No data.
OpenCVE Enrichment
No data.