CVE-2026-102565 BA Book Everything <= 1.8.28 - Unauthenticated Stored Cross-Site Scripting via 'booking_service_qty' Parameter
Unauthenticated attackers can inject scripts via the booking quantity parameter, executing them when administrators view orders in the backend.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-102565?
CVE-2026-102565 is a high-severity cross-site scripting vulnerability in bookingalgorithms BA Book Everything, published on 2 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-102565?
How do I fix CVE-2026-102565?
No fix has been published for CVE-2026-102565 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-102565 being exploited?
There is no known exploitation of CVE-2026-102565 in the wild and no public exploit code.
Sources
Also known as GHSA-cfgg-mx22-mvjv.