Medium severity6.4NVD Advisory· Published May 16, 2024· Updated Apr 8, 2026

CVE-2024-4288

Description

The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘link’ parameter in versions up to, and including, 1.6.7.14 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Nsquared/Simply Schedule Appointments
cpe:2.3:a:nsquared:simply_schedule_appointments:*:*:*:*:*:wordpress:*:*
Range: <1.6.7.18
Wp Appointments Schedules Project/Wp Appointments Schedulesllm-fuzzy
Range: <=1.6.7.14
WordPress/Wp Appointments Scheduleswp-canonicalize

Patches

Vulnerability mechanics

References

plugins.trac.wordpress.org/changeset/3087297/nvdPatch
www.wordfence.com/threat-intel/vulnerabilities/id/84262b4a-a662-4aaf-9eae-f5cca8f6cd06nvdThird Party Advisory
plugins.trac.wordpress.org/browser/simply-schedule-appointments/trunk/includes/class-shortcodes.phpnvdProduct

News mentions

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cvss	0.416
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000