CVE-2021-33570

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    CVE-2021-33570

    Published: 25 May 2021Last Modified: 8 Jul 2026

    Summary:

    Details: Postbird 0.8.4 allows stored XSS via the onerror attribute of an IMG element in any PostgreSQL database table. This can result in reading local files via vectors involving XMLHttpRequest and open of a file:/// URL, or discovering PostgreSQL passwords via vectors involving Window.localStorage and savedConnections.

    References: http://packetstormsecurity.com/files/162872/Postbird-0.8.4-XSS-LFI-Insecure-Data-Storage.html, https://tridentsec.io/blogs/postbird-cve-2021-33570/, https://github.com/Paxa/postbird/issues/132, https://github.com/Paxa/postbird/issues/133, https://github.com/Paxa/postbird/issues/134, http://packetstormsecurity.com/files/162831/Postbird-0.8.4-Cross-Site-Scripting-Local-File-Inclusion.html, https://github.com/Tridentsec-io/postbird, https://www.exploit-db.com/exploits/49910

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 7d97963c97a7136dab7049837d069d7ac506bb1b
    Fixed -None

    Affected versions

    0.8.4

    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
    CVE-2021-33570 | CVE-DB