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    CVE-2021-37840

    aaPanel through 6.8.12 allows Cross-Site WebSocket Hijacking (CSWH) involving OS commands within WebSocket messages at a ws:// URL for /webssh (the victim must have configured Terminal with at least one host). Successful exploitation depends on the browser used by a potential victim (e.g., exploitation can occur with Firefox but not Chrome).

    Published:Aug 2, 2021
    Last Modified:Nov 21, 2024
    EPS:Aug 2, 2021
    EPSS Score:0.00397
    CVSS Score:8.8

    Affected Products

    Vendor
    Aapanel
    Product
    Aapanel

    Exploits

    https://github.com/aaPanel/aaPanel/issues/74https://ssd-disclosure.com/ssd-advisory-aapanel-cswh-to-rce/https://github.com/aaPanel/aaPanel/issues/74https://ssd-disclosure.com/ssd-advisory-aapanel-cswh-to-rce/https://github.com/EonSecurity/aapanel-ws-bypass

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-29856 (CVSS 7.5) — An issue in the VirtualHost configuration handling/parser component of aaPanel v7.57.0 allows attackers to cau…
    CVE-2026-29858 (CVSS 7.5) — A lack of path validation in aaPanel v7.57.0 allows attackers to execute a local file inclusion (LFI), leading…
    CVE-2026-29859 (CVSS 9.8) — An arbitrary file upload vulnerability in aaPanel v7.57.0 allows attackers to execute arbitrary code via uploa…
    CVE-2024-42922 (CVSS 6.5) — AAPanel v7.0.7 was discovered to contain an OS command injection vulnerability.…
    CVE-2022-26252 (CVSS 6.5) — aaPanel v6.8.21 was discovered to be vulnerable to directory traversal. This vulnerability allows attackers to…
    CVE-2020-14950 (CVSS 8.8) — aaPanel through 6.6.6 allows remote authenticated users to execute arbitrary commands via shell metacharacters…
    CVE-2020-14421 (CVSS 7.2) — aaPanel through 6.6.6 allows remote authenticated users to execute arbitrary commands via the Script Content b…

    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