Read the docs
TI-2026-76259 Aliases CVE-2026-94229GHSA-g786-x9wh-wcxq

Insecure direct object reference in TrueBooker exposes customer data

Priority LOW 29CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

The TrueBooker WordPress plugin before 1.3.0 does not verify that the requester owns a booking before rendering its confirmation summary (CWE-639). An unauthenticated remote attacker can enumerate booking identifiers and retrieve the personal information of customers who booked an appointment, and can also invalidate the customer's own confirmation link. A public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

The TrueBooker WordPress plugin before 1.3.0 does not verify that the requester owns a booking before rendering its confirmation summary, allowing unauthenticated attackers to enumerate booking identifiers and retrieve the personal information of customers who booked an appointment, as well as invalidate the customer's own confirmation link.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00193 9th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed TrueBooker (Unknown): 1.3.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownTrueBooker1.1.9 to before 1.3.01.3.0Patch availableCNA
  • TrueBooker VendorUnknown Affected 1.1.9 to before 1.3.0 Fixed in 1.3.0 Patch available CNA

Remediation

Update TrueBooker to version 1.3.0, which fixes the flaw for affected versions from 1.1.9 before 1.3.0.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA TrueBooker (Unknown) Fixed in 1.3.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    TrueBooker 1.3.0

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2026-76261 Missing authorization in TrueBooker plugin lets anyone change booking servicesPriority LOW 29
    • TI-2026-76260 Missing authorization in TrueBooker lets anyone create bookingsPriority LOW 29
    • TI-2026-76258 Missing authorization in TrueBooker plugin lets anyone overwrite settingsPriority LOW 29

Timeline

  1. 2026-10-19 Threatist record created from CVE-2026-94229
  2. 2026-10-19 Weakness changed · CISA ADP
  3. 2026-10-19 CISA SSVC decision points changed
  4. 2026-10-19 Alias added: GHSA-g786-x9wh-wcxq

References

Sources