CVE-2026-16603 — HIGH (7.5)

Vulnerability Description

The Passster WordPress plugin before 4.3.6 does not enforce its category-based content protection on the WordPress REST API, allowing unauthenticated users to read the full content, title, and excerpt of category-locked posts through the core REST API.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Related Weaknesses (CWE)

CWE-200

References

https://wpscan.com/vulnerability/ec56a66e-e98a-4260-a0af-3ef6905ce839/

FAQ

What is CVE-2026-16603?

CVE-2026-16603 is a vulnerability with a CVSS score of 7.5 (HIGH). The Passster WordPress plugin before 4.3.6 does not enforce its category-based content protection on the WordPress REST API, allowing unauthenticated users to read the full content, title, and excerp...

How severe is CVE-2026-16603?

CVE-2026-16603 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-16603?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.