Content Protector (Passster) <= 4.3.6 - Authenticated (Contributor+) Sensitive Information Exposure
Strategic Overview
- Status
- Patched in 4.3.7
- Affected Plugin
- Passster – Password Protect Pages and Content
- Affected Version
<= 4.3.6- CVSS
- 4.3Medium
- Weakness type
- CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
- CVE
CVE-2025-15674
At a glance
CVE-2025-15674 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the Passster WordPress plugin, affecting versions <= 4.3.6. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Contributor level or above. The issue is fixed in version 4.3.7; sites on affected versions should update now. Disclosed August 2026, reported by Pierre Rudloff.
Vulnerability Overview
The Passster – Password Protect Pages and Content plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.3.6. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract sensitive user or configuration data.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Reaching this weakness in Passster <= 4.3.6 takes an account at Contributor level or above. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.
The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. For Passster the fix is 4.3.7: builds <= 4.3.6 are affected, anything from 4.3.7 onward is not.
Remediation
Update to version 4.3.7, or a newer patched version
How does WordSec protect against this?
The fix is the thing that ends this: Passster 4.3.7 closes this, and updating the plugin is the step that ends it.
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in Passster – Password Protect Pages and Content
- 6.4CVE-2025-14865: Passster Stored XSS
CVE-2025-14865 - 6.4CVE-2025-57926: Passster <= 4.2.18 Stored Cross-Site Scripting
CVE-2025-57926 - 6.4CVE-2024-2026: Passster <= 4.2.6.4 Stored Cross-Site Scripting
CVE-2024-2026 - 6.4CVE-2021-24837: Passster – Password Protection <= 3.5.5.7 Stored XSS
CVE-2021-24837 - 6.3CVE-2022-4974: Freemius SDK <= 2.4.2 Missing Authorization Checks
CVE-2022-4974 - 6.1CVE-2023-33999: Freemius SDK <= 2.5.9 Reflected Cross-Site Scripting
CVE-2023-33999 - 5.3CVE-2026-16604: Passster Missing Authorization
CVE-2026-16604 - 5.3CVE-2021-24881: Passster Missing Authentication
CVE-2021-24881
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C