BA Book Everything <= 1.8.27 - Unauthenticated Stored Cross-Site Scripting via first_name Parameter
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 first_name Parameter in all versions up to, and including, 1.8.27 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. An unauthenticated attacker can obtain the valid order_id, order_num, and order_hash credentials required to reach the vulnerable action_to_pay() handler simply by placing a guest booking through the public [babe-booking-form] shortcode, making the full exploit chain reachable without any account.
Why it matters now
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| bookingalgorithms | BA Book Everything | up to 1.8.27 | — | No fix listed | CNA |
- BA Book Everything Vendorbookingalgorithms Affected up to 1.8.27 Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| 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
- 2026-10-02 Threatist record created from CVE-2026-96039
- 2026-10-03 Alias added: GHSA-r85w-gp72-g77q
References
Other 7
- https://www.wordfence.com/threat-intel/vulnerabilities/id/dd118053-b0f7-4fce-aa00-b0bb40778f21?source=cve
- https://plugins.trac.wordpress.org/browser/ba-book-everything/tags/1.8.27/includes/class-babe-html.php#L4300
- https://plugins.trac.wordpress.org/browser/ba-book-everything/tags/1.8.27/includes/class-babe-order.php#L2599
- https://plugins.trac.wordpress.org/browser/ba-book-everything/tags/1.8.27/includes/class-babe-order.php#L2522
- https://plugins.trac.wordpress.org/browser/ba-book-everything/tags/1.8.27/includes/class-babe-order.php#L2653
- https://plugins.trac.wordpress.org/browser/ba-book-everything/tags/1.8.27/includes/class-babe-order.php#L2405
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3709588%40ba-book-everything%2Ftrunk&old=3640320%40ba-book-everything%2Ftrunk
More bookingalgorithms vulnerabilities
- 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-2026-83285 Cross-site scripting in WordPress BA Book Everything plugin CVSS 3.1HIGH 7.1
- TI-2026-66007 BA Book Everything <= 1.8.28 - Unauthenticated Stored Cross-Site Scripting via 'booking_service_qty' Parameter CVSS 3.1HIGH 7.2
- 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
Sources
- CVE-2026-96039 · CVE Program
- CVE-2026-96039 · NVD
- FIRST EPSS
- GHSA-r85w-gp72-g77q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences