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    CVE-2017-11820

    Microsoft SharePoint Enterprise Server 2013 SP1 and Microsoft SharePoint Enterprise Server 2016 allow an attacker to exploit a cross-site scripting (XSS) vulnerability by sending a specially crafted request to an affected SharePoint server, due to how SharePoint Server sanitizes web requests, aka "Microsoft Office SharePoint XSS Vulnerability". This CVE ID is unique from CVE-2017-11775 and CVE-2017-11777.

    Published:Oct 13, 2017
    Last Modified:Apr 20, 2025
    EPS:Oct 13, 2017
    EPSS Score:0.00855
    CVSS Score:5.4

    Affected Products

    Vendor
    Microsoft
    Product
    Sharepoint Enterprise Server

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2025-53733 (CVSS 8.4) — Incorrect conversion between numeric types in Microsoft Office Word allows an unauthorized attacker to execute…
    CVE-2025-53771 (CVSS 6.5) — Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing ove…
    CVE-2025-49706 (CVSS 6.5) — Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing ove…
    CVE-2025-47994 (CVSS 7.8) — Deserialization of untrusted data in Microsoft Office allows an unauthorized attacker to elevate privileges lo…
    CVE-2025-47172 (CVSS 8.8) — Improper neutralization of special elements used in an sql command ('sql injection') in Microsoft Office Share…
    CVE-2025-47169 (CVSS 7.8) — Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.…
    CVE-2025-47168 (CVSS 7.8) — Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.…
    CVE-2025-47166 (CVSS 8.8) — Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code…

    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