CVE-2026-59548 Byteflows CVE debrief

Who should care

Users of Byteflows Travel & Hotel Booking plugin version 1.0.0 or earlier should apply patches or mitigations to prevent sensitive data exposure. This includes administrators and security teams responsible for maintaining and securing instances of the plugin. Additionally, operators and platform administrators may need to review and update their systems to ensure protection against this vulnerability.

Technical summary

The CVE-2026-59548 vulnerability has a CVSS score of 7.5 and is classified as HIGH severity. It allows unauthenticated attackers to access sensitive data through the Byteflows Travel & Hotel Booking plugin, affecting version 1.0.0 or earlier. The vulnerability is critical because it enables exposure of sensitive information without requiring authentication.

Defensive priority

High priority should be given to patching or mitigating CVE-2026-59548 due to its high severity and potential for sensitive data exposure. Immediate action is recommended to prevent unauthorized access to sensitive information.

Recommended defensive actions

• Apply patches or updates for Byteflows Travel & Hotel Booking plugin to version 1.0.1 or later
• Implement compensating controls to monitor and restrict access to sensitive data
• Conduct inventory checks to identify and update vulnerable instances
• Review relevant monitoring, detection, and logs for exposed assets that need extra review
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record was published on 2026-07-27T15:17:04.837Z and last modified on 2026-07-27T17:46:02.447Z. The NVD entry is currently Deferred. Evidence is limited to CVE and NVD data. Defenders should verify exposed systems and review vendor guidance for patching or mitigation strategies.

Official resources