# Mang Board <= 2.4.7 - Unauthenticated Insecure Direct Object Reference to Arbitrary Post Deletion

- **ID:** WPSEC-2026-2626
- **Plugin:** Mang Board (`mangboard`), https://wordpress.org/plugins/mangboard/
- **Affected versions:** all versions before 2.4.8
- **Fixed in:** 2.4.8 (Update to 2.4.8 or later.)
- **Severity:** Medium 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L)
- **Weakness:** CWE-639
- **Usage among sites WPSec scans:** plugin Low, affected versions None seen (as of 2026-11-05)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/mangboard
- **Fix released:** 2026-11-05
- **Published:** 2026-11-06
- **URL:** https://wpsec.com/vuln/WPSEC-2026-2626/

## Description

The Mang Board plugin for WordPress is vulnerable to Insecure Direct Object Reference via the board API (mb_board AJAX action) in all versions up to, and including, 2.4.7, due to the delete ownership check validating the comment identified by 'comment_pid' instead of the targeted post when the request sets 'mode' to 'comment', while the post delete query is scoped only by the user-supplied 'board_pid'. The check also passes when the referenced comment does not exist. This makes it possible for unauthenticated attackers to delete arbitrary board posts, along with their comments, written by other users.

## References

- https://wpsec.com/vuln/WPSEC-2026-2626/
- https://plugins.svn.wordpress.org/mangboard/tags/2.4.8/
- https://wordpress.org/plugins/mangboard/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-2626/

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.