CVE-2024-4288: 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 includi

medium Affects simply-schedule-appointments (WordPress plugin). Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified .

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 includi

Package
simply-schedule-appointments (WordPress plugin) WordPress
Affected versions
<1.6.7.18
Fixed in
1.6.7.18
Severity
medium  CVSS 6.4
Exploitation
not on CISA KEV · EPSS 0% (25.1th percentile)
Published
2024-05-16
Source
nvd

References

CWE-79
NVD recordsimply-schedule-appointments (WordPress plugin) advisories

Am I affected?

Find out in one command. phpwarden checks your WordPress install against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# one-time install
pip install phpwarden

# then
phpwarden wordpress /var/www/html

Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

Install docs   How findings are ranked

Related advisories