# RepairBuddy – Repair Shop CRM & Booking Plugin for WordPress <= 4.1235 - Authenticated (Contributor+) Missing Authorization to Arbitrary Post Deletion and Modification via Devices & Services AJAX Actions

- **ID:** WPSEC-2026-2826
- **Plugin:** RepairBuddy – Repair Shop CRM & Booking Plugin for WordPress (`computer-repair-shop`), https://wordpress.org/plugins/computer-repair-shop/
- **Affected versions:** from 4.1222 before 4.1236
- **Fixed in:** 4.1236 (Update to 4.1236 or later.)
- **Severity:** High 8.1 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H)
- **Weakness:** CWE-862
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-11-10)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/computer-repair-shop
- **Fix released:** 2026-11-09
- **Published:** 2026-11-10
- **URL:** https://wpsec.com/vuln/WPSEC-2026-2826/

## Description

The RepairBuddy – Repair Shop CRM & Booking Plugin for WordPress plugin for WordPress is vulnerable to unauthorized deletion and modification of data via the Devices & Services AJAX actions (such as crs_delete_device, crs_save_device_model and crs_save_service_row) in all versions up to, and including, 4.1235. This is due to missing capability checks and missing post type validation: the handlers relied only on the 'crs_devices_nonce' nonce, which is printed on a Devices & Services management page that any user with the 'delete_posts' capability can open. This makes it possible for authenticated attackers, with Contributor-level access and above, to permanently delete arbitrary posts (including pages, products and orders), rename arbitrary posts, and change service price and status metadata.

## References

- https://wpsec.com/vuln/WPSEC-2026-2826/
- https://plugins.svn.wordpress.org/computer-repair-shop/tags/4.1236/
- https://wordpress.org/plugins/computer-repair-shop/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-2826/

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.