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    CVE-2026-105987

    KGS Software tia Viewer is vulnerable to Stored XSS via the annotation API. Due to the lack of input validation, an authenticated attacker can inject arbitrary JavaScript payload into a stickynote annotation. When any user opens the document, the viewer renders the annotation and the browser executes the payload. This may lead to compromising the user's session. This issue has been fixed in version 1.2.8.

    Published:Oct 27, 2026
    Last Modified:Oct 28, 2026
    EPS:Oct 27, 2026
    EPSS Score:0.00239
    CVSS Score:5.1

    Affected Products

    Vendor
    Kgs Software
    Product
    Tia Viewer

    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