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    CVE-2026-116538

    HtmlSanitizer before 9.2.1039 and 10.0 prereleases before 10.0.1037-beta contains a cross-site scripting vulnerability because SanitizeDom(string) never sanitizes attributes on the html and body wrapper elements. Attackers can supply input with a second body or html tag carrying event handlers like onload, executing script when applications render serialized document or body outer HTML.

    Published:Oct 26, 2026
    Last Modified:Oct 31, 2026
    EPS:Oct 26, 2026
    EPSS Score:0.00287
    CVSS Score:4.7

    Affected Products

    Vendor
    Htmlsanitizer Project
    Product
    Htmlsanitizer
    Vendor
    Mganss
    Product
    Htmlsanitizer

    Exploits

    No exploit reference

    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