CVE-2026-16603

HighCVSS 7.5/10Last modified Aug 26, 2026

Description

The Passster WordPress plugin before 4.3.6 does not enforce its category-based content protection on the WordPress REST API, allowing unauthenticated users to read the full content, title, and excerpt of category-locked posts through the core REST API.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-200

Affected software

Vendor	Product	Versions
Unknown	Passster	< 4.3.6

References

https://wpscan.com/vulnerability/ec56a66e-e98a-4260-a0af-3ef6905ce839/

Timeline

Published: Aug 5, 2026
Last modified: Aug 26, 2026
NVD status: Deferred

Related CVEs from 2026

CVE-2026-166047.5The Passster WordPress plugin before 4.3.6 outputs password-protected block content in the public page response before verifying the passwo CVE-2026-166057.2The MultiVendorX WordPress plugin before 5.0.11 does not verify that the store targeted through its REST API belongs to the requesting vend CVE-2026-166069.8A vulnerability in Fujitsu Software Linux openFT and Fujitsu Software Oracle Solaris openFT before version 12.1D00 allows for unauthenticate CVE-2026-166077.8A vulnerability in Fujitsu Software Linux openFT and Fujitsu Software Oracle Solaris openFT before version 12.1D00 allows for local privileg CVE-2026-166085.3The Download Monitor WordPress plugin before 5.2.6 does not perform authorization checks on one of its download-logging AJAX actions, and ex CVE-2026-16614.3The WP Mail Logging WordPress plugin before 1.17.0 does not properly restrict the HTML and CSS of logged emails before rendering them in its CVE-2026-166109.8The Admin and Site Enhancements (ASE) Pro plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, CVE-2026-166117.5The Product Feed PRO for WooCommerce by AdTribes WordPress plugin before 13.5.7 does not perform an authorization check on one of its REST CVE-2026-166125.3The FiboSearch WordPress plugin before 1.34.1 does not consistently exclude password-protected products from its unauthenticated AJAX endpo CVE-2026-166134.3The GDPR Cookie Compliance WordPress plugin before 5.1.0 expires the visitor's cookies from an action that is reachable without authenticat CVE-2026-166144.9The GSheetConnector – CF7 Google Sheets Connector with Real-Time Sync plugin for WordPress is vulnerable to generic SQL Injection via the 's CVE-2026-166156.8A flaw was found in librest. The PKCE implementation for OAuth authorization uses the GRand function from the GLib API, a cryptographically