What’s Vulnerable › Vulnerabilities

CVE-2024-2842: Easy Appointments <= 3.11.18 - Authenticated (Contributor+) Stored Cross-Site Scripting

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-03-29 · updated 2026-06-17
• Weakness: CWE-79

Description

The Easy Appointments plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'ea_full_calendar' shortcode in all versions up to, and including, 3.11.18 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Easy Appointments: before 3.11.9 — fixed in 3.11.9

How to fix

Upgrade to a fixed version: Easy Appointments 3.11.9. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3059359%40easy-appointments&new=3059359%40easy-appointments&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/9e1514c8-3752-4d0a-87a3-3f245a7cb914?source=cve
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3059359%40easy-appointments&new=3059359%40easy-appointments&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/9e1514c8-3752-4d0a-87a3-3f245a7cb914?source=cve

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