CVE-2026-17559
🔶 mediumSummary
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 Score
5.3
Medium
EPSS Score
0.3
Exploit Probability
Published Date
2026-08-21
First Seen: 2026-08-22
📊 Relative Risk Intelligence
This CVE is Lower Risk - more severe than 19.2% of all 348,756 vulnerabilities in our database.
#281,775
Below average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Aug 21, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
YES
Can be exploited automatically
💥 Technical Impact
Partial
Limited system impact
🏆 Discovered By
Erwan LR (WPScan)
WPScan (coordinator)
SSVC data provided by
CISA
Last Modified
2026-08-21
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE IDs (Weakness Types)