UBUNTU-CVE-2021-3694

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    UBUNTU-CVE-2021-3694

    Published: 23 Aug 2021Last Modified: 4 Feb 2026
    Upstream:
    CVE-2021-3694

    Summary:

    Details: LedgerSMB does not sufficiently HTML-encode error messages sent to the browser. By sending a specially crafted URL to an authenticated user, this flaw can be abused for remote code execution and information disclosure.

    References: https://ubuntu.com/security/CVE-2021-3694, https://ledgersmb.org/cve-2021-3694-cross-site-scripting, https://huntr.dev/bounties/ef7f4cf7-3a81-4516-b261-f5b6ac21430c, https://github.com/ledgersmb/ledgersmb/commit/98fa476d46a4a7e5e9492ed69b4fa190be5547fc, https://ubuntu.com/security/notices/USN-5097-1, https://www.cve.org/CVERecord?id=CVE-2021-3694, https://ubuntu.com/security/notices/USN-7647-1

    Affected packages

    Package

    Name: ledgersmb

    Purl: pkg:deb/ubuntu/[email protected]+ds-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.4.42+ds-1ubuntu0.1~esm1

    Affected versions

    1.4.41+ds-1
    1.4.42+ds-1

    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
    UBUNTU-CVE-2021-3694 | CVE-DB