# CVE-2026-40789: TMS Amelia sensitive data exposure

Source: https://junglewise.ai/threats/cve-2026-40789-tms-amelia-sensitive-data-exposure  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-15. Updated: 2026-06-15  
License: CC BY 4.0 with a link back

CVE-2026-40789 · Severity: high · CVSS 7.5 · Published 2026-06-15

The Amelia booking plugin for WordPress is vulnerable to a security flaw that allows unauthorized individuals to access sensitive information. This plugin is commonly used by businesses to manage appointments and events; an exploit could lead to the exposure of private customer or system data. Organizations should update to version 2.2.1 or later to protect their data and maintain customer privacy.

Technologies: [TMS-Outsource Amelia](https://junglewise.ai/threats/technologies/amelia). Vendors: [TMS-Outsource](https://junglewise.ai/threats/vendors/tms-outsource).

## Quick answers

**Is CVE-2026-40789 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-40789 being exploited in the wild.

**How severe is CVE-2026-40789?** High severity, with a CVSS score of 7.5, published 15 June 2026.

**Which products and versions are affected?** TMS-Outsource Amelia <= 2.2.

**Is there a fix for CVE-2026-40789?** A patch was published on 2026-04-23: Patch released in version 2.2.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-40789 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-40789?** Check whether you run TMS-Outsource Amelia at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

Amelia versions up to and including 2.2 are vulnerable to sensitive data exposure (CWE-201). The vulnerability allows an unauthenticated attacker to access sensitive information via the network without any user interaction. This is classified as a high-severity issue with a CVSS score of 7.5, as it can lead to a significant loss of confidentiality. The root cause involves the improper insertion of sensitive information into data sent to users who should not have access to it. The issue is resolved in version 2.2.1.

## Affected products

- TMS Amelia <= 2.2

## Timeline

- 2026-03-20: disclosed: Reported by Weerawat Pawanawiwat (ErbaZZ)
- 2026-04-23: patched: Patch released in version 2.2.1
- 2026-06-15: advisory: NVD and Patchstack advisory published

## References

- [https://patchstack.com/database/wordpress/plugin/ameliabooking/vulnerability/wordpress-amelia-plugin-2-2-sensitive-data-exposure-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/ameliabooking/vulnerability/wordpress-amelia-plugin-2-2-sensitive-data-exposure-vulnerability?_s_id=cve)

## Related threats

- [TMS Amelia privilege escalation in WordPress plugin](https://junglewise.ai/threats/cve-2026-48889-tms-amelia-privilege-escalation-in-wordpress-plugin)
- [TMS Amelia broken access control in WordPress plugin](https://junglewise.ai/threats/cve-2026-40795-tms-amelia-broken-access-control-in-wordpress-plugin)