Page and Post Restriction <= 1.6.1 - Unauthenticated Authentication Bypass via REST API Nonce Bypass via Cookie Re-Authentication

Summary

CVE	CVE-2026-118194
State	PUBLISHED
Assigner	Wordfence
Source Priority	CVE Program / NVD first with legacy fallback
Published	2026-10-30 06:16:47 UTC
Updated	2026-10-30 06:16:47 UTC
Description	The Page and Post Restriction plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 1.6.1 This is due to the `papr_restrict_page_post_rest_api()` function, hooked on `rest_pre_dispatch`, re-authenticating the current user from the `wordpress_logged_in` cookie via `wp_set_current_user()` for any GET or HEAD REST request where the current user is 0, without verifying a REST nonce — silently undoing the nonce-zeroing that WordPress core's `rest_cookie_check_errors()` performs on cookie-authenticated requests that lack an `X-WP-Nonce` header or `_wpnonce` parameter. Combined with WordPress's permissive REST CORS behavior — which echoes the request `Origin` and sets `Access-Control-Allow-Credentials: true` — this allows an unauthenticated attacker to read REST API GET responses as a logged-in victim, exposing role-restricted and private post/page content, victim user profile data via `/wp-json/wp/v2/users/me`, and comments the victim is authorized to see. This requires the attacker to lure a logged-in user into visiting an attacker-controlled page that issues credentialed cross-origin `fetch` requests against the target site's REST API; no nonce or further victim interaction beyond the page visit is needed.

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Problem Types: CWE-287 | CWE-287 CWE-287 Improper Authentication

Version	Source	Type	Score	Severity	Vector
3.1	[email protected]	Primary	6.5	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N`
3.1	CNA	DECLARED	6.5	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N`

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Source	Vendor	Product	Version	Platforms
CNA	Cyberlord92	Page And Post Restriction	affected 1.6.1 semver	Not specified

Reference	Source	Link	Tags
plugins.trac.wordpress.org/browser/page-and-post-restriction/tags/1.6.0/page-and-post-re...	[email protected]	plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/page-and-post-restriction	[email protected]	plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/page-and-post-restriction/tags/1.6.0/page-and-post-re...	[email protected]	plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/page-and-post-restriction/tags/1.6.0/page-and-post-re...	[email protected]	plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/2785a4e1-64f3-4b20-b0b3-7030b...	[email protected]	www.wordfence.com
plugins.trac.wordpress.org/changeset/3771992/page-and-post-restriction/trunk/page-and-po...	[email protected]	plugins.trac.wordpress.org
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

CNA: Wordfence PRISM (en)

Source	Time	Event
CNA	2026-10-27T19:14:32.000Z	Vendor Notified
CNA	2026-10-29T17:04:23.000Z	Disclosed

There are currently no legacy QID mappings associated with this CVE.