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    CVE-2026-29048

    HumHub is an Open Source Enterprise Social Network. In version 1.18.0, a cross-site scripting vulnerability was identified in the Button component of version 1.18.0. Due to inconsistent output encoding at several points within the software, malicious scripts could be injected and executed in the context of the user's browser. This issue has been patched in version 1.18.1.

    Published:Mar 6, 2026
    Last Modified:Apr 17, 2026
    EPS:Mar 6, 2026
    EPSS Score:0.00035
    CVSS Score:6.1

    Affected Products

    Vendor
    Humhub
    Product
    Humhub

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-18430 (CVSS 7.2) — HumHub 1.18.4 contains a stored cross-site scripting vulnerability in the comment-deletion notification flow. …
    CVE-2026-18756 (CVSS 7.2) — HumHub Community Edition 1.18.4 contains a reflected cross-site scripting vulnerability in the Space membershi…
    CVE-2026-18526 (CVSS 7.4) — HumHub Community Edition 1.18.4 and 1.18.4-pl1 contain a stored Cross-Site Scripting (XSS) vulnerability in th…
    CVE-2026-47657 (CVSS 7.1) — HumHub is an Open Source Enterprise Social Network. In versions 1.13.0 through 1.18.2, a missing authorization…
    CVE-2025-64442 (CVSS 7.1) — HumHub is an Open Source Enterprise Social Network. Versions below 1.17.4 have a XSS vulnerability in the Meta…
    CVE-2024-52043 (CVSS 6.9) — Generation of Error Message Containing Sensitive Information in HumHub GmbH & Co. KG - HumHub on Linux allows:…
    CVE-2022-31133 (CVSS 5.9) — HumHub is an Open Source Enterprise Social Network. Affected versions of HumHub are vulnerable to a stored Cro…
    CVE-2017-20028 (CVSS 5.6) — A vulnerability was found in HumHub 0.20.1/1.0.0-beta.3. It has been classified as critical. This affects an u…
    CVE-2017-20027 (CVSS 4.3) — A vulnerability was found in HumHub up to 1.0.1 and classified as problematic. Affected by this issue is some …
    CVE-2017-20026 (CVSS 4.3) — A vulnerability has been found in HumHub up to 1.0.1 and classified as problematic. Affected by this vulnerabi…

    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