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CVE-2026-17559mediumCWE-863

Content Protector (Passster) < 4.3.9 - Unauthenticated Protected Content Disclosure via REST Path Allowlist Bypass

33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 5.3epss 0.3%
exploitation probability
0.3%top 83% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products
Unknown · Passster
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.