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PatchSiren cyber security CVE debrief

CVE-2026-14224 Easy Appointments CVE debrief

The Easy Appointments WordPress plugin before 3.12.28 does not verify that the appointment targeted by its customer-data update action belongs to the current user; the action only checks a shared nonce that any authenticated user can obtain from their own appointment's edit form. A subscriber-level user with an appointment of their own can therefore reuse that nonce to overwrite the customer metadata (email, name, phone, description) of another user's appointment. Because the Easy Appointments WordPress plugin before 3.12.28 then treats that metadata as the appointment's contact data, a subsequent administrator status change with customer notifications enabled delivers the victim's appointment notification to the attacker-controlled email address.

Vendor
Easy Appointments
Product
Easy Appointments WordPress plugin
CVSS
MEDIUM 5.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-29
Original CVE updated
2026-08-10
Advisory published
2026-07-29
Advisory updated
2026-08-10

Who should care

Administrators and users of the Easy Appointments WordPress plugin, especially those with subscriber-level access, should be aware of this vulnerability and take necessary defensive actions to prevent targeted attacks.

Technical summary

The Easy Appointments WordPress plugin before 3.12.28 does not verify that the appointment targeted by its customer-data update action belongs to the current user; the action only checks a shared nonce that any authenticated user can obtain from their own appointment's edit form. A subscriber-level user with an appointment of their own can therefore reuse that nonce to overwrite the customer metadata (email, name, phone, description) of another user's appointment.

Defensive priority

Medium-priority defensive actions are recommended due to the CVSS score of 5.4 and the potential for targeted attacks.

Recommended defensive actions

  • Verify and apply the vendor's remediation for the Easy Appointments WordPress plugin version 3.12.28 or later.
  • Restrict access to appointment metadata to prevent unauthorized modifications.
  • Monitor for suspicious activity related to appointment notifications and customer metadata updates.
  • Implement compensating controls to detect and prevent potential attacks.
  • Review and update incident response plans to address potential targeted attacks.

Evidence notes

The CVE record and NVD detail provide information about the vulnerability in the Easy Appointments WordPress plugin. The vulnerability allows a subscriber-level user to overwrite customer metadata of another user's appointment, potentially leading to targeted attacks.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-14224 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-14224

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-14224 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-14224

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.