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    CVE-2026-21624

    Lack of input filterung leads to a persistent XSS vulnerability in the user avatar text handling of the Easy Discuss component for Joomla.

    Published:Jan 16, 2026
    Last Modified:Apr 18, 2026
    EPS:Jan 16, 2026
    EPSS Score:0.00013
    CVSS Score:5.4

    Affected Products

    Vendor
    Joomla
    Product
    Joomla
    Vendor
    Joomla
    Product
    Joomla!
    Vendor
    Stackideas
    Product
    Easydiscuss

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2025-63082 (CVSS 5.9) — Lack of input filtering leads to an XSS vector in the HTML filter code related to data URLs in img tags.…
    CVE-2025-63083 (CVSS 5.9) — Lack of output escaping leads to a XSS vector in the pagebreak plugin.…
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    CVE-2025-55757 (CVSS 6.1) — A unauthenticated reflected XSS vulnerability in VirtueMart 1.0.0-4.4.10 for Joomla was discovered.…
    CVE-2025-40636 (CVSS 9.3) — SQL injection vulnerability in Joomla module mod_vvisit_counter v2.0.4j3. This vulnerability allows an attacke…
    CVE-2025-54477 (CVSS 5.3) — Improper handling of authentication requests lead to a user enumeration vector in the passkey authentication m…
    CVE-2025-54476 (CVSS 4.8) — Improper handling of input could lead to an XSS vector in the checkAttribute method of the input filter framew…
    CVE-2025-54300 (CVSS 8.5) — A stored XSS vulnerability in Quantum Manager component 1.0.0-3.2.0 for Joomla was discovered. The SVG upload …

    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