Content Protector (Passster) <= 4.3.5 - Unauthenticated Non-Public Post Content Disclosure
The Content Protector (Passster) plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 4.3.5. This is due to missing post status validation in the captcha REST endpoint, which returned post content without verifying the post was publicly published. This makes it possible for unauthenticated attackers to access the content of non-public (unpublished) posts by supplying their ID to the captcha REST endpoint.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | Passster – Password Protect Pages and Content | <= 4.3.5 | 4.3.6 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N- Weakness (CWE)
CWE-200- Platform
- WordPress
- Package
Passster – Password Protect Pages and Content- Disclosed
- 27.07.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
Wordfence Intelligence - 627c5dbc-2196-487c-82b0-756468bb9ec4 - Wordfence Intelligence
Copyright 1999-2026 The MITRE Corporation
Copyright 2012-2026 Defiant Inc.
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Vulnerability history: Passster – Password Protect Pages and Content
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 20
- First → latest
- 03.2022 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Medium 20
Disclosures per year
- 2022: 4
- 2023: 1
- 2024: 2
- 2025: 3
- 2026: 10
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