SEPTEMBER 18, 2026
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Case File

CVE-2026-17559

MEDIUM · CVSS 5.3 EPSS 0.26%

Source: NVD + CISA KEV + EPSS · Published 2026-08-21 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

The Passster WordPress plugin prior to version 4.3.9 is vulnerable due to improper validation of REST API request paths, enabling unauthenticated attackers to access content of globally password-protected posts and pages. This flaw poses a medium risk, as it could lead to unauthorized information disclosure. WordPress site administrators using this plugin should prioritize updating to the latest version to mitigate potential exposure.

CVE
CVE-2026-17559
Severity
MEDIUM
CVSS
5.3
EPSS
0.26%
WordPress

Original NVD Description

The Passster WordPress plugin before 4.3.9 does not correctly match its own public endpoint paths when deciding which REST API requests may bypass global password protection, comparing them as an unanchored substring of the request URI rather than against the resolved route, allowing an unauthenticated attacker to read the content of globally password-protected posts and pages.