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Vulnerability record · CVE-2026-16603 · published 5 August 2026

CVE-2026-16603: Information exposure vulnerability

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.

7.5 CVSS 3.1 High EPSS 0.43% · top 64.8% CWE-200 · Information exposure Deferred
7.5CVSS 3.1 base score
0.43%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
26 Aug 2026Last modified by NVD

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

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-16603), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.