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    CVE-2020-35933

    A Reflected Authenticated Cross-Site Scripting (XSS) vulnerability in the Newsletter plugin before 6.8.2 for WordPress allows remote attackers to trick a victim into submitting a tnpc_render AJAX request containing either JavaScript in an options parameter, or a base64-encoded JSON string containing JavaScript in the encoded_options parameter.

    Published:Jan 1, 2021
    Last Modified:Nov 21, 2024
    EPS:Jan 1, 2021
    EPSS Score:0.00124
    CVSS Score:6.5

    Affected Products

    Vendor
    Thenewsletterplugin
    Product
    Newsletter

    Exploits

    https://www.wordfence.com/blog/2020/08/newsletter-plugin-vulnerabilities-affect-over-300000-sites/https://www.wordfence.com/blog/2020/08/newsletter-plugin-vulnerabilities-affect-over-300000-sites/

    Related CVEs

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    CVE-2025-3584 (CVSS 4.8) — The Newsletter WordPress plugin before 8.8.2 does not sanitise and escape some of its Subscription settings, …
    CVE-2025-3583 (CVSS 4.8) — The Newsletter WordPress plugin before 8.7.1 does not sanitise and escape some of its settings, which could a…
    CVE-2024-5317 (CVSS 6.4) — The Newsletter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'np1' parameter in al…
    CVE-2023-4772 (CVSS 6.4) — The Newsletter plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'newsletter_form' sho…
    CVE-2023-27922 (CVSS 6.1) — Cross-site scripting vulnerability in Newsletter versions prior to 7.6.9 allows a remote unauthenticated attac…
    CVE-2022-1889 (CVSS 4.8) — The Newsletter WordPress plugin before 7.4.6 does not escape and sanitise the preheader_text setting, which co…
    CVE-2022-1756 (CVSS 6.1) — The Newsletter WordPress plugin before 7.4.5 does not sanitize and escape the $_SERVER['REQUEST_URI'] before e…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High