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    CVE-2025-53523

    Stored cross-site scripting vulnerabilities exist in GroupSession Free edition prior to ver5.3.0, GroupSession byCloud prior to ver5.3.3, and GroupSession ZION prior to ver5.3.2. A logged-in user can prepare a malicious page or URL, and an arbitrary script may be executed on the web browser when another user accesses it.

    Published:Dec 12, 2025
    Last Modified:Feb 17, 2026
    EPS:Dec 12, 2025
    EPSS Score:0.00037
    CVSS Score:5.4

    Affected Products

    Vendor
    Groupsession
    Product
    Groupsession
    Vendor
    Groupsession
    Product
    Groupsession Bycloud
    Vendor
    Groupsession
    Product
    Groupsession Zion

    Exploits

    No exploit reference

    Related CVEs

    CVE-2025-64781 (CVSS 5.1) — In GroupSession Free edition prior to ver5.7.1, GroupSession byCloud prior to ver5.7.1, and GroupSession ZION …
    CVE-2025-62192 (CVSS 5.3) — SQL Injection vulnerability exists in GroupSession Free edition prior to ver5.3.0, GroupSession byCloud prior …
    CVE-2025-58576 (CVSS 5.1) — Cross-site request forgery vulnerability exists in GroupSession Free edition prior to ver5.3.0, GroupSession b…
    CVE-2025-61987 (CVSS 6.9) — GroupSession Free edition prior to ver5.3.0, GroupSession byCloud prior to ver5.3.3, and GroupSession ZION pri…
    CVE-2025-61950 (CVSS 5.3) — In GroupSession, a Circular notice can be created with its memo field non-editable, but the authorization chec…
    CVE-2025-65120 (CVSS 5.1) — Reflected cross-site scripting vulnerability exists in GroupSession Free edition prior to ver5.7.1, GroupSessi…
    CVE-2025-57883 (CVSS 5.1) — Reflected cross-site scripting vulnerability exists in GroupSession Free edition prior to ver5.3.0, GroupSessi…
    CVE-2025-66284 (CVSS 4.8) — Stored cross-site scripting vulnerabilities exist in GroupSession Free edition prior to ver5.7.1, GroupSession…
    CVE-2025-54407 (CVSS 5.1) — Stored cross-site scripting vulnerability exists in GroupSession Free edition prior to ver5.3.0, GroupSession …
    CVE-2021-20876 (CVSS 6.8) — Path traversal vulnerability in GroupSession Free edition ver5.1.1 and earlier, GroupSession byCloud ver5.1.1 …

    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