# PublishPress Permissions: Access Control, Content Permissions, User Access <= 4.9.1 - Unauthenticated Sensitive Information Exposure via '_ppp' Parameter

- **ID:** WPSEC-2026-3120
- **Plugin:** PublishPress Permissions: Access Control, Content Permissions, User Access (`press-permit-core`), https://wordpress.org/plugins/press-permit-core/
- **Affected versions:** from 3.6.4 before 5.0.0
- **Fixed in:** 5.0.0 (Update to 5.0.0 or later.)
- **Severity:** Medium 5.9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
- **Weakness:** CWE-863
- **Usage among sites WPSec scans:** plugin Medium, affected versions Medium (as of 2026-11-13)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/press-permit-core
- **Fix released:** 2026-11-13
- **Published:** 2026-11-14
- **URL:** https://wpsec.com/vuln/WPSEC-2026-3120/

## Description

The PublishPress Permissions plugin for WordPress is vulnerable to Sensitive Information Exposure via the '_ppp' parameter in all versions up to, and including, 4.9.1, due to a Public Post Preview compatibility routine that disables all permission filtering on any non-POST front-end request carrying a non-empty '_ppp' parameter, without validating a preview token. This makes it possible for unauthenticated attackers to view posts and other content restricted by the plugin's permissions. Exploitation requires the Public Post Preview plugin to be active.

## References

- https://wpsec.com/vuln/WPSEC-2026-3120/
- https://plugins.svn.wordpress.org/press-permit-core/tags/5.0.0/
- https://wordpress.org/plugins/press-permit-core/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-3120/

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.