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    CVE-2026-48940

    A Joomla user with K2 "create item" rights (Author tier by default) can submit an article whose `embedVideo` POST field contains a raw `<script>` tag; K2 stores it verbatim and renders it unescaped to any visitor of the article page.

    Published:Jun 25, 2026
    Last Modified:Jun 28, 2026
    EPS:Jun 25, 2026
    EPSS Score:0.00167
    CVSS Score:3.4

    Affected Products

    Vendor
    Getk2
    Product
    K2 Extension For Joomla

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-48945 (CVSS 5.3) — The K2 article gallery upload path accepts a zip/tar archive, extracts it under `/media/k2/galleries/<id>/`, a…
    CVE-2026-48941 (CVSS 6.5) — The K2 frontend `item.checkin` task accepts an unauthenticated `sigProFolder` query parameter and uses it dire…
    CVE-2026-48946 (CVSS 6.3) — The K2 frontend article-attachment upload path accepts files whose extension is `.php`, and Apache's standard …
    CVE-2026-48944 (CVSS 6.5) — The K2 frontend article-save handler accepts an `attachment[N][existing]` POST field that is concatenated with…
    CVE-2026-48942 (CVSS 6.1) — K2 ≤ 2.26 renders the `#__k2_users.image` column directly into HTML `src` attributes via two distinct template…
    CVE-2026-48943 (CVSS 6.5) — K2 ≤ 2.24 contains a mass-assignment defect in the K2 system user plugin `plg_user_k2`. A Registered Joomla us…

    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