Passster <= 3.5.5.5.1 - Insecure Password Storage to Sensitive Data Exposure

5.3
Inadequate Encryption Strength
CVE CVE-2022-3206
CVSS 5.3 (Medium)
Publicly Published September 21, 2022
Last Updated January 22, 2024
Researcher Raad Haddad

Description

The Passster plugin for WordPress is vulnerable to Sensitive Data Exposure in versions up to, and including, 3.5.5.5.1 due to storing base64_encoded passwords in cookies. This could allow attackers to extract sensitive user data if those cookies get leaked. Version 3.5.5.5.1 provides a partial fix.

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Vulnerability Details for Passster – Password Protect Pages and Content

Software Type Plugin
Software Slug content-protector (view on wordpress.org)
Patched? Yes
Remediation Update to version 3.5.5.5.2, or a newer patched version
Affected Version
  • <= 3.5.5.5.1
Patched Version
  • 3.5.5.5.2

Recent vulnerabilities in Passster – Password Protect Pages and Content

# Title CVE ID CVSS Researchers Date
1 Passster <= 4.2.25 - Missing Authorization CVE-2026-25036 4.3 johska February 12, 2026
2 Passster – Password Protect Pages and Content <= 4.2.24 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode CVE-2025-14865 6.4 Muhammad Yudha - DJ January 27, 2026
3 Passster <= 4.2.19 - Unauthenticated Information Exposure CVE-2025-64218 5.3 Que Thanh Tuan - Blue Rock November 12, 2025
4 Passster <= 4.2.18 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2025-57926 6.4 Que Thanh Tuan - Blue Rock September 22, 2025
5 Passster – Password Protect Pages and Content <= 4.2.10 - Unauthenticated Content Restriction Bypass to Sensitive Information Exposure CVE-2024-11282 5.3 Francesco Carlucci January 6, 2025
6 Passster <= 4.2.6.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via content_protector Shortcode CVE-2024-2026 6.4 Krzysztof Zając April 4, 2024
7 Passster – Password Protect Pages and Content <= 4.2.6.2 - Missing Authorization to Sensitive Information Exposure CVE-2024-0616 5.3 Francesco Carlucci February 8, 2024
8 Freemius SDK <= 2.5.9 - Reflected Cross-Site Scripting via fs_request_get CVE-2023-33999 6.1 Rafie Muhammad July 18, 2023
9 Passster – Password Protection <= 3.5.5.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode CVE-2021-24837 6.4 apple502j December 29, 2022
10 Passster <= 3.5.5.8 - Missing Authentication leading to Sensitive Information Disclosure (Private Post Leakage) CVE-2021-24881 5.3 dc11 December 29, 2022

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