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    CVE-2025-70129

    If the anti spam-captcha functionality in PluXml versions 5.8.22 and earlier is enabled, a captcha challenge is generated with a format that can be automatically recognized for articles, such that an automated script is able to solve this anti-spam mechanism trivially and publish spam comments. The details of captcha challenge are exposed within document body of articles with comments & anti spam-captcha functionalities enabled, including "capcha-letter", "capcha-word" and "capcha-token" which can be used to construct a valid post request to publish a comment. As such, attackers can flood articles with automated spam comments, especially if there are no other web defenses available.

    Published:Mar 10, 2026
    Last Modified:Apr 7, 2026
    EPS:Mar 10, 2026
    EPSS Score:0.00037
    CVSS Score:5.3

    Affected Products

    Vendor
    Pluxml
    Product
    Pluxml

    Exploits

    https://github.com/forest4x/vuln-research-public/blob/main/CVE-2025-70129.pdfhttps://youtu.be/dD2olE4yMqY

    Common Weakness Enumeration

    CWE-804 Guessable CAPTCHA

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    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