Ultimate Appointment Scheduling: Cross-site scripting
Ultimate Appointment Scheduling is affected by cross-site scripting. Exposure depends on how the affected operation is made reachable by the site. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
- Component
- Ultimate Appointment Scheduling
- Plugin slug
ultimate-appointment-scheduling- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Aug 26, 2020
This CVE was published Aug 26, 2020 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update Ultimate Appointment Scheduling to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
Etoile Web Design Ultimate Appointment Booking & Scheduling WordPress Plugin v1.1.9 and lower does not sanitize the value of the "Appointment_ID" GET parameter before echoing it back out inside an input tag. This results in a reflected XSS vulnerability that attackers can exploit with a specially crafted URL.
NVD vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N