# CVE-2026-81798: Easy Appointments DOM-based cross-site scripting

Source: https://junglewise.ai/threats/cve-2026-81798-easy-appointments-dom-based-cross-site-scripting  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-08. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-81798 · Severity: high · CVSS 7.1 · Published 2026-09-08

Easy Appointments is a WordPress plugin for booking and appointment management. A DOM-based cross-site scripting vulnerability allows attackers to inject malicious scripts into web pages viewed by site visitors, potentially stealing customer data, hijacking accounts, or compromising the booking system's integrity.

Technologies: [Easy Appointments](https://junglewise.ai/threats/technologies/easy-appointments). Vendors: [Easy Appointments](https://junglewise.ai/threats/vendors/easy-appointments).

## Quick answers

**Is CVE-2026-81798 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-81798 being exploited in the wild.

**How severe is CVE-2026-81798?** High severity, with a CVSS score of 7.1, published 8 September 2026.

**Which products and versions are affected?** Easy Appointments through 4.0.2.2.

**Is there a fix for CVE-2026-81798?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-81798 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-81798?** Check whether you run Easy Appointments 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

The vulnerability is a DOM-based cross-site scripting (XSS) flaw stemming from improper neutralization of user-supplied input during web page generation. The vulnerable component fails to properly sanitize or escape user inputs before rendering them in the DOM, allowing attackers to inject arbitrary JavaScript. The attack requires user interaction (such as clicking a malicious link or visiting a crafted page) but does not require authentication. Successful exploitation enables attackers to execute arbitrary code in the context of victims' browsers, leading to credential theft, session hijacking, or malware injection. As of the advisory date, no official patch was available; Patchstack has issued a mitigation rule as a temporary defense.

## Affected products

- Easy Appointments Easy Appointments through 4.0.2.2

## Timeline

- 2026-09-08: disclosed: Vulnerability published on NVD
- 2026-09-07: advisory: Patchstack advisory issued
- 2026-03-18: other: Vulnerability reported to Patchstack by 0xzenko

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/easy-appointments/vulnerability/wordpress-easy-appointments-plugin-4-0-2-1-cross-site-scripting-xss-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/easy-appointments/vulnerability/wordpress-easy-appointments-plugin-4-0-2-1-cross-site-scripting-xss-vulnerability?_s_id=cve)

## Related threats

- [Easy Appointments plugin appointment cancellation token forgery](https://junglewise.ai/threats/cve-2026-87965-easy-appointments-plugin-appointment-cancellation-token-forgery)
- [Easy Appointments WordPress plugin information disclosure in REST API](https://junglewise.ai/threats/cve-2026-14226-easy-appointments-wordpress-plugin-information-disclosure-in-rest)
- [Easy Appointments WordPress plugin IDOR in customer details retrieval](https://junglewise.ai/threats/cve-2026-14223-easy-appointments-wordpress-plugin-idor-in-customer-details)
- [Easy Appointments WordPress plugin unauthorized connection deletion](https://junglewise.ai/threats/cve-2026-14222-easy-appointments-wordpress-plugin-unauthorized-connection)
- [Easy Appointments WordPress plugin missing authorization in appointment management](https://junglewise.ai/threats/cve-2026-14221-easy-appointments-wordpress-plugin-missing-authorization-in)