# Fattura24 <= 8.2.0 - Missing Authorization to Unauthenticated Support Ticket Submission

- **ID:** WPSEC-2026-1452
- **Plugin:** Fattura24 (`fattura24`), https://wordpress.org/plugins/fattura24/
- **Affected versions:** all versions before 8.2.1
- **Fixed in:** 8.2.1 (Update to 8.2.1 or later.)
- **Severity:** Medium 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
- **Weakness:** CWE-862
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-10-22)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/fattura24
- **Fix released:** 2026-10-21
- **Published:** 2026-10-22
- **URL:** https://wpsec.com/vuln/WPSEC-2026-1452/

## Description

The Fattura24 plugin for WordPress is vulnerable to unauthorized access via the Support tab ticket handler in all versions up to, and including, 8.2.0, due to a missing capability check (and missing nonce) in the fatt_24_get_ticket_data function. That function is hooked to an init-time WooCommerce action and handles any POST request with the 'invia' parameter. This makes it possible for unauthenticated attackers to make the site send support requests to Fattura24's help desk in the site's name. These requests use an attacker-chosen reply-to address and include the plugin settings, environment information and the data of any order the attacker names.

## References

- https://wpsec.com/vuln/WPSEC-2026-1452/
- https://plugins.svn.wordpress.org/fattura24/tags/8.2.1/
- https://wordpress.org/plugins/fattura24/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-1452/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.