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BA Book Everything <= 1.8.28 - Unauthenticated Stored Cross-Site Scripting via 'booking_service_qty' Parameter

Priority LOW 31CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

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

Summary

The BA Book Everything plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'booking_service_qty' parameter in all versions up to, and including, 1.8.28 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires that an administrator or other privileged user opens the injected order record in the plugin's wp-admin order management area, which is the plugin's ordinary order-review workflow.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00307 23rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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
bookingalgorithmsBA Book Everythingup to 1.8.28—No fix listedCNA
  • BA Book Everything Vendorbookingalgorithms Affected up to 1.8.28 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:ba-booking:ba_book_everything:*:*:*:*:*:*:*:*——bookingalgorithms
  • cpe:2.3:a:ba-booking:ba_book_everything:*:*:*:*:*:*:*:* Versions — — ·bookingalgorithms

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-102565
  2. 2026-10-03 Alias added: GHSA-cfgg-mx22-mvjv
  3. 2026-10-03 CISA SSVC decision points changed

References

  • TI-2024-08161 BA Book Everything <= 1.6.20 - Cross-Site Request Forgery to Email Address Update/Account Takeover CVSS 3.1HIGH 8.8
  • TI-2024-21200 WordPress BA Book Everything plugin <= 1.6.4 - Auth. SQL Injection vulnerability CVSS 3.1HIGH 8.8
  • TI-2026-63730 BA Book Everything <= 1.8.27 - Unauthenticated Stored Cross-Site Scripting via first_name Parameter CVSS 3.1HIGH 7.2
  • TI-2026-83285 Cross-site scripting in WordPress BA Book Everything plugin CVSS 3.1HIGH 7.1
  • TI-2024-31678 WordPress BA Book Everything plugin <= 1.6.20 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
  • TI-2024-08160 BA Book Everything <= 1.6.20 - Unauthenticated Arbitrary User Password Reset CVSS 3.1MEDIUM 5.3
See all 11 →

Sources