Page and Post Restriction <= 1.4.1 - Unauthenticated Missing Authorization to Sensitive Information Exposure via REST API
Strategic Overview
- Status
- Patched in 1.4.2
- Affected Plugin
- Page and Post Restriction
- Affected Version
<= 1.4.1- CVSS
- 7.5High
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2026-12000
At a glance
CVE-2026-12000 is a high-severity Missing Authorization vulnerability in the Page and Post Restriction WordPress plugin, affecting versions <= 1.4.1. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 1.4.2; sites on affected versions should update now. Disclosed August 2026, reported by Mitchell.
Vulnerability Overview
The Page and Post Restriction plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to and including 1.4.0 via the WordPress core REST endpoints /wp-json/wp/v2/pages, /wp-json/wp/v2/pages/<id>, /wp-json/wp/v2/posts, and /wp-json/wp/v2/posts/<id>. This is due to the plugin's REST guards — papr_restrict_page_post_rest_api() and the the_posts filter registered by papr_filter_posts() — sourcing their restricted-ID list exclusively from papr_get_restricted_posts_id(), which only reads the per-page metabox options papr_allowed_redirect_for_pages and papr_allowed_redirect_for_posts and never consults the two global toggles papr_access_for_only_loggedin and papr_access_for_only_loggedin_posts that the plugin's own UI describes as 'Make all Pages Private' / 'Make all Posts Private'. This makes it possible for unauthenticated attackers to read the full rendered content of every published page and post on sites configured with the documented global toggles, bypassing the security boundary enforced on the frontend by papr_restrict_logged_in_users().
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality.
CWE-862: Missing Authorization
Page and Post Restriction <= 1.4.1 carries this weakness at papr_restrict_page_post_rest_api(), and reaching it takes no account at all. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.
Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Page and Post Restriction the fix is 1.4.2: builds <= 1.4.1 are affected, anything from 1.4.2 onward is not.
Remediation
Update to version 1.4.2, or a newer patched version
How WordSec helps
This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: Page and Post Restriction 1.4.2 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in Page and Post Restriction
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