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.

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Fixes

Solution

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Workaround

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History

Fri, 21 Aug 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Passster Project
Passster Project passster
Wordpress
Wordpress wordpress
Vendors & Products Passster Project
Passster Project passster
Wordpress
Wordpress wordpress

Fri, 21 Aug 2026 15:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
CWE-284

Fri, 21 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 21 Aug 2026 13:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
CWE-284

Fri, 21 Aug 2026 13:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-863

Fri, 21 Aug 2026 12:00:00 +0000

Type Values Removed Values Added
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.
Title Content Protector (Passster) < 4.3.9 - Unauthenticated Protected Content Disclosure via REST Path Allowlist Bypass
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-08-21T12:47:20.891Z

Reserved: 2026-07-27T13:36:40.825Z

Link: CVE-2026-17559

cve-icon Vulnrichment

Updated: 2026-08-21T12:47:16.827Z

cve-icon NVD

Status : Received

Published: 2026-08-21T12:16:24.750

Modified: 2026-08-21T13:16:54.783

Link: CVE-2026-17559

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-21T20:30:07Z

Weaknesses