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    CVE-2026-34212

    Docmost is open-source collaborative wiki and documentation software. In versions prior to 0.71.0, improper neutralization of attachment URLs in Docmost allows a low-privileged authenticated user to store a malicious `javascript:` URL inside an attachment node in page content. When another user views the page and activates the attachment link/icon, attacker-controlled JavaScript executes in the context of the Docmost origin. Version 0.71.0 patches the issue.

    Published:Apr 14, 2026
    Last Modified:Apr 22, 2026
    EPS:Apr 14, 2026
    EPSS Score:0.0001
    CVSS Score:5.4

    Affected Products

    Vendor
    Docmost
    Product
    Docmost

    Exploits

    https://github.com/docmost/docmost/security/advisories/GHSA-cf68-cff9-hq4whttps://github.com/0xmrma/CVE-2026-34212

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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