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    CVE-2025-12346

    A vulnerability was detected in MaxSite CMS up to 109. This vulnerability affects unknown code of the file application/maxsite/admin/plugins/auto_post/uploads-require-maxsite.php of the component HTTP Header Handler. Performing manipulation of the argument X-Requested-FileName/X-Requested-FileUpDir results in unrestricted upload. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

    Published:Oct 28, 2025
    Last Modified:Nov 6, 2025
    EPS:Oct 28, 2025
    EPSS Score:0.00038
    CVSS Score:6.3

    Affected Products

    Vendor
    Max-3000
    Product
    Maxsite Cms
    Vendor
    Maxsite
    Product
    Cms

    Exploits

    https://note-hxlab.wetolink.com/share/8QmDZCddHvyR

    Related CVEs

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    CVE-2026-87928 (CVSS 5.1) — MaxSite CMS versions 0.94 through 109.6 contain a cross-site scripting vulnerability in the admin_page upload …
    CVE-2026-87927 (CVSS 8.8) — MaxSite CMS through 109.6 contains a local file inclusion vulnerability in the ajax and require-maxsite dispat…
    CVE-2026-70554 (CVSS 9.3) — MaxSite CMS contains a PHP object injection vulnerability that allows unauthenticated attackers to execute arb…
    CVE-2026-70553 (CVSS 9.3) — MaxSite CMS contains a remote code execution vulnerability that allows unauthenticated attackers to inject arb…
    CVE-2026-70552 (CVSS 9.3) — MaxSite CMS 109.5 and earlier contains an authentication bypass vulnerability in the AJAX dispatcher that allo…
    CVE-2026-3395 (CVSS 5.5) — A flaw has been found in MaxSite CMS up to 109.1. This impacts the function eval of the file application/maxsi…
    CVE-2025-12347 (CVSS 2.1) — A flaw has been found in MaxSite CMS up to 109. This issue affects some unknown processing of the file applica…
    CVE-2022-25413 (CVSS 5.4) — Maxsite CMS v108 was discovered to contain a stored cross-site scripting (XSS) vulnerability via the parameter…

    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