CVE-2026-17559: CWE-863 Incorrect Authorization in Passster
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.
CVE-2026-17559: CWE-863 Incorrect Authorization in Passster
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.
CVSS v3.1
Score 5.3medium
Affected software
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-27T13:36:40.825Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a883c15acd9273b4916aa2d
Added to database: 08/21/2026, 11:52:53 UTC
Last updated: 08/21/2026, 11:52:53 UTC
Views: 1
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