CVE-2026-105999 Booking Package CVE debrief

Who should care

Defenders responsible for WordPress installations using the Booking Package plugin should assess their exposure and prioritize verification and remediation. This includes operators, administrators, and security teams managing WordPress deployments with the Booking Package plugin. They should review the plugin version, verify exposure, and apply necessary updates or mitigations to prevent potential exploitation.

Why it matters

CVE-2026-105999 is a vulnerability in the Booking Package WordPress plugin that allows unauthenticated users to disclose sensitive settings. Defenders should prioritize verification and remediation to prevent potential exploitation.

• Potential disclosure of sensitive settings, including administrator notification email addresses.
• Possible unauthorized access to calendar-account configurations.
• Need for verification of plugin version and remediation to prevent exploitation.

Technical summary

The Booking Package WordPress plugin before version 1.7.31 does not perform authorization checks before returning calendar-account configuration in a response. This allows unauthenticated users to disclose sensitive settings, including the administrator's notification email addresses. The vulnerability is related to insufficient authorization checks in the plugin, which can lead to potential disclosure of sensitive settings and possible unauthorized access to calendar-account configurations. Defenders should prioritize verifying the version of the Booking Package plugin and ensuring it is updated to 1.7.31 or later.

Defensive priority

Defenders should prioritize verifying the version of the Booking Package plugin and ensuring it is updated to 1.7.31 or later. They should also monitor for unauthorized access to calendar-account configurations.

Recommended defensive actions

• Verify the version of the Booking Package plugin and update to 1.7.31 or later if necessary.
• Monitor for unauthorized access to calendar-account configurations.
• Restrict access to sensitive settings, such as administrator notification email addresses.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record and source item provide information about the vulnerability, but there is limited information about potential exploitation or impact. Defenders should verify the plugin version and ensure it is updated to 1.7.31 or later. The source item and CVE record provide details about the vulnerability, but additional information about affected scope and potential exploitation is needed. Limited evidence suggests that the vulnerability may be exploited by unauthenticated users.

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.