CVE-2026-102565 bookingalgorithms CVE debrief

Who should care

Defenders responsible for WordPress installations with the BA Book Everything plugin should assess exposure and prioritize verification and remediation. This includes reviewing and updating the plugin, restricting access to the wp-admin order management area, and monitoring for suspicious activity.

Why it matters

The BA Book Everything plugin for WordPress is vulnerable to Stored Cross-Site Scripting, allowing unauthenticated attackers to inject arbitrary web scripts.

• Defenders must verify and update the BA Book Everything plugin to prevent exploitation
• Successful exploitation requires administrator or privileged user interaction
• Injected scripts can execute on pages accessed by users

Technical 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.

Defensive priority

Defenders should prioritize verifying and updating the BA Book Everything plugin to prevent exploitation.

Recommended defensive actions

• Verify the BA Book Everything plugin version and update to a patched version if necessary
• Review and restrict access to the plugin's wp-admin order management area
• Monitor for suspicious activity and injected scripts
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but the scope of affected versions and potential exploitation is limited by the availability of public information. The BA Book Everything plugin for WordPress has a known vulnerability that defenders should verify and update to prevent exploitation. The plugin's wp-admin order management area is a potential target for injected scripts.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.