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    CVE-2026-30830

    Defuddle cleans up HTML pages. Prior to version 0.9.0, the _findContentBySchemaText method in src/defuddle.ts interpolates image src and alt attributes directly into an HTML string without escaping. An attacker can use a " in the alt attribute to break out of the attribute context and inject event handler. This issue has been patched in version 0.9.0.

    Published:Mar 7, 2026
    Last Modified:Apr 17, 2026
    EPS:Mar 7, 2026
    EPSS Score:0.00013
    CVSS Score:6.1

    Affected Products

    Vendor
    Kepano
    Product
    Defuddle

    Exploits

    https://github.com/kepano/defuddle/security/advisories/GHSA-5mq8-78gm-pjmq

    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