Security readout for executives and security teams
Plain-English summary
CVE-2026-1431 affects the WordPress Booking Calendar plugin through version 10.14.13. A missing authorization check can let unauthenticated visitors access booking details, including customer names, phone numbers, and email addresses. The main business risk is privacy exposure, not system takeover.
Executive priority
Treat as a privacy and customer-trust issue. Prioritize sites that collect personal booking data and are publicly reachable. Urgency is moderate unless sensitive customer volume is high or suspicious access is observed.
Technical view
The issue is CWE-862 in wpbc_ajax_WPBC_FLEXTIMELINE_NAV(), where capability checks are missing. CVSS 3.1 is 5.3: network-accessible, low complexity, no privileges, no user interaction, with low confidentiality impact and no integrity or availability impact reported.
Likely exposure
Public WordPress sites running Booking Calendar versions up to and including 10.14.13 are potentially exposed, especially sites collecting customer booking contact details.
Exploitation context
The CVE is not listed as KEV in the provided data. The vulnerability is remotely reachable and unauthenticated per the CVE description, but the provided sources do not state active exploitation.
Researcher notes
The public record identifies a missing capability check in wpbc_ajax_WPBC_FLEXTIMELINE_NAV() and links to the 10.14.13 plugin source. The provided sources do not name a fixed version, patch commit, or confirmed exploitation.
Mitigation direction
- Inventory WordPress sites using the Booking Calendar plugin.
- Check whether installed versions are 10.14.13 or earlier.
- Review vendor and WordPress plugin guidance for a fixed version or official mitigation.
- Limit unnecessary public exposure of booking data where operationally possible.
- Monitor for unusual unauthenticated access to booking-related AJAX endpoints.
Validation and detection
- Confirm the plugin name and version on each WordPress instance.
- Compare installed versions against the affected range: up to and including 10.14.13.
- Review web logs for unexpected unauthenticated booking-detail requests.
- Verify whether customer names, phones, or emails are stored in bookings.
- Document remediation status and any compensating controls.
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-2026-1431 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: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:N/UI:N/S:U/C:L/I:N/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:L/I:N/A:N
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.