Information disclosure in Passster
CVE-2026-16602
The Passster WordPress plugin before 4.3.6 does not perform a post-status check before returning post content from an unauthenticated REST endpoint, allowing unauthenticated users to disclose the content of non-public (draft, private, and pending) posts on sites that have a captcha provider configured.
Vulnerability class: Information Disclosure
EPSS: 0.003 (24.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Unknown Passster — versions 0
Weakness classification (CWE)
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-16602?
- CVE-2026-16602 is a high-severity vulnerability in Passster, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-08-05.
- How severe is CVE-2026-16602?
- High severity. CVSS v3 base score is 7.5 out of 10.