Easy Appointments <= 3.12.27 - Missing Authorization to Authenticated (Contributor+) Arbitrary Connection Deletion
The Easy Appointments plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check and missing nonce verification on the `ea_delete_multiple_connections` AJAX action in all versions up to, and including, 3.12.27. This makes it possible for authenticated attackers, with Contributor-level access and above, to delete arbitrary connection records from the `wp_ea_connections` table, disrupting the plugin's core booking functionality.
Browse WordPress security risksQuick answer
Easy Appointments should be reviewed and updated if it matches the affected versions. The recommended fix is to apply the vendor-supported patched version or the mitigation steps below, then retest the public website with Fixnx.
Who is affected
Affected versions
- up to and including 3.12.27
Fixed versions
- 3.12.28
How to fix it
CVE-2026-8789 affects Easy Appointments and involves security-control failure. Successful exploitation may affect the confidentiality, integrity, or availability of the affected workflow. Prioritize deployments that process untrusted input, expose the affected feature, or hold sensitive data. Upgrade Easy Appointments to 3.12.28 or a later vendor-supported fixed release.
- Inventory every deployment, device, package, plugin, container, build, and environment that uses Easy Appointments.
- Compare the installed version with the recorded affected range: *-3.12.27.
- Upgrade Easy Appointments to 3.12.28 or a later vendor-supported fixed release.
- Until patched, disable the affected Easy Appointments feature or plugin and restrict its public and administrator endpoints.
- Review configuration, roles, tokens, network paths, and exposed endpoints connected to Easy Appointments; remove access that is not required.
- Review application, system, proxy, and audit logs for requests and behavior linked to the affected feature and CVE.
- If exploitation is suspected, isolate affected assets, preserve evidence, rotate exposed credentials or keys, restore trusted data, and rebuild compromised systems before returning them to service.
Scan now. Google sign-in is only needed to unlock fix guidance.
Verify the fix
- Confirm every affected asset now runs the fixed vendor-supported release or has the documented mitigation for CVE-2026-8789 in place.
- Use a safe regression test to confirm the affected security-control failure path no longer produces the vulnerable behavior.
- Confirm temporary access controls, endpoint restrictions, network blocks, and least-privilege settings remain effective after the update.
- Review post-remediation logs and rerun Fixnx plus the relevant package, dependency, firmware, browser, or product-specific security check.
- Document affected assets, versions, changes, validation evidence, reviewed logs, and any credential rotation, cleanup, or replacement completed.
Related categories
Related security risks
More published guidance from the same primary category.
Easy Appointments <= 3.12.27 - Missing Authorization to Authenticated (Author+) Bulk Appointment Manipulation
Updated July 13, 2026
highCVE-2026-65500 Manual - Documentation, Knowledge Base & Education WordPress Theme vulnerability
Updated July 24, 2026
mediumParticipants Database <= 2.7.8.3 - Missing Authorization to Unauthenticated Arbitrary Record Update / Sensitive Information Exposure via 'id' Parameter
Updated July 24, 2026
Trusted references
FAQ
What is affected by CVE-2026-8789?
Easy Appointments versions listed as affected should be reviewed: up to and including 3.12.27.
What should I fix first?
Start with internet-facing sites, admin panels, login flows, plugins, themes, modules, packages, and systems that process user-controlled input or sensitive data.
How do I confirm the fix worked?
Apply the patched version or mitigation, clear caches where relevant, retest the affected workflow, and run a new Fixnx scan to verify public website exposure signals.
How are Fixnx security risk categories chosen?
Fixnx keeps one canonical risk page and assigns only broad, relevant categories such as ecosystem, technology area, or vulnerability class.