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Predictable cancellation tokens in Booking Package expose booking data

Priority LOW 21CWE-326Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-326.

Summary

The Booking Package WordPress plugin before 1.7.31 derives booking cancellation tokens from values it exposes publicly instead of a secure source of randomness, which is weak cryptographic strength (CWE-326). An unauthenticated remote attacker can reconstruct a booking's token to view that booking's personal data and, where visitor cancellation is enabled, cancel the booking. 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 Booking Package WordPress plugin before 1.7.31 does not generate booking cancellation tokens using a secure source of randomness, deriving them instead from values it exposes publicly, so an unauthenticated attacker can reconstruct an arbitrary booking's token, disclose that booking's personal data and, where visitor cancellation is enabled, cancel the booking.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00153 4th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Booking Package (Unknown): 1.7.31

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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
UnknownBooking Packagebefore 1.7.311.7.31Patch availableCNA
  • Booking Package VendorUnknown Affected before 1.7.31 Fixed in 1.7.31 Patch available CNA

Remediation

Update Booking Package to version 1.7.31, which fixes the flaw.

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

  • Fix · CNA Booking Package (Unknown) Fixed in 1.7.31

Fixed in the same release

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

  • Release ·

    Booking Package 1.7.31

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2026-78602 Sensitive calendar account data exposed in Booking Package pluginPriority LOW 30
    • TI-2026-78601 Missing authorization in Booking Package lets attackers disable paid featuresPriority LOW 30

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-105996
  2. 2026-10-21 Alias added: GHSA-85q6-jvxh-6w5f

References

Sources