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

Medium 5.9 CWE-863Fixed in 5.0.0
ID
WPSEC-2026-3120
Plugin
PublishPress Permissions: Access Control, Content Permissions, User Access (press-permit-core)
Affected
from 3.6.4 before 5.0.0
Remediation
Update to 5.0.0 or later.
CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-863
Usage
Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-11-13
Attack surface
PublishPress Permissions: Access Control, Content Permissions, User Access on WPSec AttackSurface
Fix released
Published

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

Published by WPSec. Provided as is, without warranty. Corrections: contact us.

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