Security readout for executives and security teams
Plain-English summary
CVE-2026-1932 affects the WordPress Appointment Booking Calendar Plugin – Bookr. An unauthenticated attacker could change the status of appointments because a REST API endpoint lacks an authorization check. This is mainly an integrity risk: bookings could be altered, disrupting operations and customer trust.
Executive priority
Treat as a moderate operational integrity issue. Prioritize sites where appointments drive revenue, customer service, or regulated scheduling. The main business risk is unauthorized booking manipulation rather than full site compromise, based on current public information.
Technical view
The issue is CWE-862 missing authorization on the update-appointment REST API endpoint in Bookr versions up to and including 1.0.2. The CVSS 3.1 score is 5.3, vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N. Sources indicate unauthenticated status modification, not data theft or service outage.
Likely exposure
Exposure is limited to WordPress sites running Appointment Booking Calendar Plugin – Bookr up to version 1.0.2 with appointment functionality reachable over the network. Sites not using this plugin are not affected based on the provided sources.
Exploitation context
The vulnerability is remotely reachable and requires no login or user interaction. The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Public references include Wordfence and WordPress plugin source locations showing the relevant REST controller.
Researcher notes
The provided record identifies the vulnerable endpoint as update-appointment and references appointment-controller.php around line 47 in trunk and tag 1.0.2. Evidence supports missing capability enforcement for unauthenticated status changes. No patch version or exploit-in-the-wild evidence is included in the supplied sources.
Mitigation direction
- Inventory WordPress sites for the Bookr plugin and its installed version.
- If running version 1.0.2 or earlier, check vendor or WordPress plugin guidance for an update.
- Restrict or disable the plugin if business operations can tolerate it until guidance is available.
- Review recent appointment status changes for unexpected modifications.
Validation and detection
- Confirm whether the Bookr plugin is installed on each WordPress site.
- Record the installed plugin version and compare it to 1.0.2.
- Review web server and WordPress logs for unauthenticated appointment update activity.
- Verify appointment records for unauthorized status changes or customer-impacting inconsistencies.
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-862: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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-2026-1932 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
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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:N/UI:N/S:U/C:N/I:L/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2ab4baab-9e91-4ed5-9749-4a14e8180e71?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/bookr/trunk/includes/rest-api/controller/appointment-controller.php#L47CVE reference
- https://plugins.trac.wordpress.org/browser/bookr/tags/1.0.2/includes/rest-api/controller/appointment-controller.php#L47CVE 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.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.