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    CVE-2026-78850

    An issue in Matomo v.5.11.2 allows a remote attacker to obtain sensitive information via the SiteContentDetector / SitesManager component. NOTE: the Supplier disputes the relevance of this report because the site administrator is a trusted party, and would not plausibly set main_url to a URL that offers additional information to an adversary.

    Published:Oct 15, 2026
    Last Modified:Oct 26, 2026
    EPS:Oct 15, 2026
    EPSS Score:0.00304
    CVSS Score:5

    Affected Products

    Vendor
    Matomo
    Product
    Matomo

    Exploits

    https://github.com/SLO-CYBER-SEC/CVE-2026-78850

    Common Weakness Enumeration

    CWE-918 Server-Side Request Forgery

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

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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