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TI-2026-73838 Aliases CVE-2026-107126GHSA-v4rg-pjjp-9wm6

Unauthenticated stored XSS in WP Booking System WordPress plugin

Priority MEDIUM 40CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

The WP Booking System WordPress plugin before 2.1.0.1 does not sanitise or escape a client-controllable request value before storing it. The stored value is later output in an administration screen, which is a cross-site scripting flaw (CWE-79). An unauthenticated remote attacker can store script that runs in the session of an administrator who views the stored data. 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 WP Booking System WordPress plugin before 2.1.0.1 does not sanitise and escape a client-controllable request value before storing it and later outputting it in an administration screen, allowing unauthenticated attackers to perform Stored Cross-Site Scripting attacks that execute in the session of an administrator who views the stored data.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00462 40th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed WP Booking System (Unknown): 2.1.0.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownWP Booking Systembefore 2.1.0.12.1.0.1Patch availableCNA
  • WP Booking System VendorUnknown Affected before 2.1.0.1 Fixed in 2.1.0.1 Patch available CNA

Remediation

Update WP Booking System to version 2.1.0.1 or later.

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

  • Fix · CNA WP Booking System (Unknown) Fixed in 2.1.0.1

Timeline

  1. 2026-10-14 Threatist record created from CVE-2026-107126
  2. 2026-10-14 Alias added: GHSA-v4rg-pjjp-9wm6
  3. 2026-10-14 CVSS score added · CISA ADP
  4. 2026-10-14 Weakness changed · CISA ADP
  5. 2026-10-14 CISA SSVC decision points changed
  6. 2026-10-16 Priority changed: LOW → MEDIUM

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences