Security readout for executives and security teams
Plain-English summary
This WordPress booking plugin can let logged-in staff-level users view appointment records that belong to other staff members. The exposed data may include customer personal information. It is not described as an anonymous internet attack, but it matters for organizations with multiple staff users handling appointments.
Executive priority
Treat as a privacy and access-control issue for affected WordPress booking sites. Prioritize sites processing regulated or sensitive customer data, especially where many staff, contractors, or franchise users have appointment-management access.
Technical view
CVE-2026-1704 is an IDOR/CWE-639 in Simply Schedule Appointments through 1.6.9.29. The permission check allows users with ssa_manage_appointments capability without validating ownership of the requested appointment. An authenticated Team Member or similar user could access other staff appointment records via an appointment ID parameter. CVSS is 4.3, confidentiality impact only.
Likely exposure
WordPress sites using Appointment Booking Calendar / Simply Schedule Appointments plugin versions up to and including 1.6.9.29 are potentially exposed. Exposure requires authenticated users with ssa_manage_appointments capability, such as Team Members, not anonymous visitors.
Exploitation context
The source bundle does not indicate active exploitation, and this CVE is not listed as KEV. Abuse requires a valid account with staff-level appointment management capability. The business concern is inappropriate internal or partner access to customer PII in appointment records.
Researcher notes
Evidence points to get_item_permissions_check granting access based on capability without staff ownership validation. References include WordPress Trac source lines and a trunk changeset, but the provided bundle does not clearly name a fixed version. Avoid assuming public exploit activity from these sources.
Mitigation direction
- Inventory WordPress sites for the plugin and versions up to 1.6.9.29.
- Update to the vendor-designated fixed release when confirmed by plugin guidance.
- Restrict ssa_manage_appointments capability to trusted users until remediated.
- Remove unnecessary Team Member or custom staff-level accounts.
- Review available logs for unusual appointment access across staff boundaries.
Validation and detection
- Confirm the installed plugin name and version in WordPress administration or asset inventory.
- Identify users and roles granted the ssa_manage_appointments capability.
- Check vendor or WordPress plugin guidance for a release newer than 1.6.9.29.
- After remediation, verify staff can only access appointments they own or are assigned.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-639: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-1704 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c82f3864-13af-4ff6-824a-4c799a98f3f6?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/simply-schedule-appointments/trunk/includes/class-appointment-model.php#L1436CVE reference
- https://plugins.trac.wordpress.org/browser/simply-schedule-appointments/tags/1.6.9.21/includes/class-appointment-model.php#L1436CVE reference
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3480506%40simply-schedule-appointments%2Ftrunk&old=3475885%40simply-schedule-appointments%2Ftrunk&sfp_email=&sfph_mail=CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Authorization Bypass Through User-Controlled Key
Authorization Bypass Through User-Controlled Key represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.