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    CVE-2021-47667

    An OS command injection vulnerability in lib/NSSDropoff.php in ZendTo 5.24-3 through 6.x before 6.10-7 allows unauthenticated remote attackers to execute arbitrary commands via shell metacharacters in the tmp_name parameter when dropping off a file via a POST /dropoff request.

    Published:Apr 5, 2025
    Last Modified:Apr 15, 2026
    EPS:Apr 5, 2025
    EPSS Score:0.01099
    CVSS Score:10

    Affected Products

    Vendor
    Zend
    Product
    Zendto

    Exploits

    No exploit reference

    Related CVEs

    CVE-2025-34508 (CVSS 5.3) — A path traversal vulnerability exists in the file dropoff functionality of ZendTo versions 6.15-7 and prior. …
    CVE-2025-32352 (CVSS 4.8) — A type confusion vulnerability in lib/NSSAuthenticator.php in ZendTo before v5.04-7 allows remote attackers to…
    CVE-2021-27888 (CVSS 6.1) — ZendTo before 6.06-4 Beta allows XSS during the display of a drop-off in which a filename has unexpected chara…
    CVE-2020-8986 (CVSS 9.8) — lib/NSSDropbox.php in ZendTo prior to 5.22-2 Beta failed to properly check for equality when validating the se…
    CVE-2020-8985 (CVSS 8.8) — ZendTo prior to 5.22-2 Beta allowed reflected XSS and CSRF via the unlock.tpl unlock user functionality.…
    CVE-2020-8984 (CVSS 7.5) — lib/NSSDropbox.php in ZendTo prior to 5.22-2 Beta allowed IP address spoofing via the X-Forwarded-For header.…
    CVE-2018-1000841 (CVSS 6.1) — Zend.To version Prior to 5.15-1 contains a Cross Site Scripting (XSS) vulnerability in The verify.php page tha…
    CVE-2013-6808 (CVSS 4.3) — Cross-site scripting (XSS) vulnerability in lib/NSSDropoff.php in ZendTo before 4.11-13 allows remote attacker…

    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