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    CVE-2026-90916

    Joomla! Core - [20260906] - Core - Improper ACL checks in content history comparison view in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - An improper access check allows unauthorized users to view inaccessible contents.

    Published:Sep 29, 2026
    Last Modified:Oct 6, 2026
    EPS:Sep 29, 2026
    EPSS Score:0.00238
    CVSS Score:2.7

    Affected Products

    Vendor
    Joomla
    Product
    Joomla!
    Vendor
    Joomla
    Product
    Joomla\!

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-284 Improper Access Control

    Related CVEs

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    CVE-2026-90914 (CVSS 5.9) — Joomla! Core - [20260904] - Core - XSS in the generic media output layouts in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 …
    CVE-2026-92231 (CVSS 7.1) — Joomla! Core - [20260915] - Core - XSS filter bypass in InputFilter via HTML5 entity decode mismatch in Joomla…
    CVE-2026-90918 (CVSS 6.9) — Joomla! Core - [20260908] - Core - XSS in HTML Mail Templates in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - The mail te…
    CVE-2026-92222 (CVSS 8.9) — Joomla! Core - [20260909] - Core - SSRF vectors in various core extensions in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 …
    CVE-2026-92223 (CVSS 5.1) — Joomla! Core - [20260910] - Core - Improper ACL checks for workflow stage changes in Joomla 5.0.0-5.4.8, 6.0.0…
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    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