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    CVE-2023-43770

    Roundcube before 1.4.14, 1.5.x before 1.5.4, and 1.6.x before 1.6.3 allows XSS via text/plain e-mail messages with crafted links because of program/lib/Roundcube/rcube_string_replacer.php behavior.

    Published:Sep 22, 2023
    Last Modified:Oct 31, 2025
    EPS:Sep 22, 2023
    EPSS Score:0.75153
    CVSS Score:6.1

    CISA Notification

    Description

    Roundcube before 1.4.14, 1.5.x before 1.5.4, and 1.6.x before 1.6.3 allows XSS via text/plain e-mail messages with crafted links because of program/lib/Roundcube/rcube_string_replacer.php behavior.

    Required Action:

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

    Notes:

    No extra notes provided.

    Due Date
    Mar 4, 2024
    921 days ago
    Alert Date
    Feb 12, 2024
    942 days ago

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Roundcube
    Product
    Webmail

    Exploits

    https://github.com/knight0x07/CVE-2023-43770-PoChttps://github.com/s3cb0y/CVE-2023-43770-POChttps://github.com/skyllpro/CVE-2021-44026-PoC

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    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