An issue was discovered in Roundcube Webmail before 1.3.12 and 1.4.x before 1.4.5. There is XSS via a malicious XML attachment because text/xml is among the allowed types for a preview.

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM / 22.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5182-1 advisory.

    It was discovered that Roundcube Webmail allowed JavaScript code to be present in the CDATA of an HTML     message. A remote attacker could possibly use this issue to execute a cross-site scripting (XSS) attack.
    This issue only affected Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2020-12625)

    It was discovered that Roundcube Webmail incorrectly processed login and logout POST requests. An attacker     could possibly use this issue to launch a cross-site request forgery (CSRF) attack and force an     authenticated user to be logged out. This issue only affected Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and     Ubuntu 20.04 ESM. (CVE-2020-12626)

    It was discovered that Roundcube Webmail incorrectly processed new plugin names in rcube_plugin_api.php.
    An attacker could possibly use this issue to obtain sensitive information from local files or to execute     arbitrary code. This issue only affected Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM.
    (CVE-2020-12640)

    It was discovered that Roundcube Webmail did not sanitize shell metacharacters recovered from variables in     its configuration settings. An attacker could possibly use this issue to execute arbitrary code in the     server. This issue only affected Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2020-12641)

    It was discovered that Roundcube Webmail incorrectly sanitized characters in the username template object.
    An attacker could possibly use this issue to execute a cross-site scripting (XSS) attack. This issue only     affected Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2020-13964)

    It was discovered that Roundcube Webmail allowed preview of text/html content. A remote attacker could     possibly use this issue to send a malicious XML attachment via an email message and execute a cross-site     scripting (XSS) attack. This issue only affected Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM.
    (CVE-2020-13965)

    Andrea Cardaci discovered that Roundcube Webmail did not properly sanitize HTML special characters when     dealing with HTML messages that contained an SVG element in the XML namespace. A remote attacker could     possibly use this issue to execute a cross-site scripting (XSS) attack. This issue only affected Ubuntu     18.04 ESM and Ubuntu 20.04 ESM. (CVE-2020-15562)

    Lukasz Pilorz discovered that Roundcube Webmail did not properly sanitize HTML special characters when     dealing with HTML messages that contained SVG documents. A remote attacker could possibly use this issue     to execute a cross-site scripting (XSS) attack. This issue only affected Ubuntu 18.04 ESM and Ubuntu 20.04     ESM. (CVE-2020-16145)

    Alex Birnberg discovered that Roundcube Webmail incorrectly sanitized characters in plain text e-mail     messages that included link reference elements. A remote attacker could possibly use this issue to execute     a cross-site scripting (XSS) attack. This issue only affected Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and     Ubuntu 20.04 ESM. (CVE-2020-35730)

    It was discovered that Roundcube Webmail did not properly sanitize HTML special characters in warning     messages that contained an attachment's filename extension. A remote attacker could possibly use this     issue to execute a cross-site scripting (XSS) attack. This issue only affected Ubuntu 16.04 ESM, Ubuntu     18.04 ESM and Ubuntu 20.04 ESM. (CVE-2021-44025)

    It was discovered that Roundcube Webmail incorrectly managed session variables related to search     functionalities. A remote attacker could possibly use this issue to execute a SQL injection attack. This     issue only affected Ubuntu 16.04 ESM, Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2021-44026)

    It was discovered that Roundcube Webmail did not properly sanitize HTML special characters when dealing     with HTML messages that contained CSS content. A remote attacker could possibly use this issue to execute     a cross-site scripting (XSS) attack. This issue only affected Ubuntu 18.04 ESM, Ubuntu 20.04 ESM and     Ubuntu 22.04 ESM. (CVE-2021-46144)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

**RELEASE 1.4.6**

  - Installer: Fix regression in SMTP test section (#7417)

----

**RELEASE 1.4.5**

  - Fix bug in extracting required plugins from     composer.json that led to spurious error in log (#7364)

  - Fix so the database setup description is compatible with     MySQL 8 (#7340)

  - Markasjunk: Fix regression in jsevent driver (#7361)

  - Fix missing flag indication on collapsed thread in Larry     and Elastic (#7366)

  - Fix default keyservers (use keys.openpgp.org), add note     about CORS (#7373, #7367)

  - Password: Fix issue with Modoboa driver (#7372)

  - Mailvelope: Use sender's address to find pubkeys to     check signatures (#7348)

  - Mailvelope: Fix Encrypt button hidden in Elastic (#7353)

  - Fix PHP warning: count(): Parameter must be an array or     an object... in ID command handler (#7392)

  - Fix error when user-configured skin does not exist     anymore (#7271)

  - Elastic: Fix aspect ratio of a contact photo in mail     preview (#7339)

  - Fix bug where PDF attachments marked as inline could     have not been attached on mail forward (#7382)

  - **Security**: Fix a couple of XSS issues in Installer     (#7406)

  - **Security**: Fix XSS issue in template object     'username' (#7406)

  - **Security**: Better fix for CVE-2020-12641

  - **Security**: Fix cross-site scripting (XSS) via     malicious XML attachment

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Matei Badanoiu and LoRexxar@knownsec discovered that roundcube, a skinnable AJAX based webmail solution for IMAP servers, did not correctly process and sanitize requests. This would allow a remote attacker to perform a Cross-Side Scripting (XSS) attack leading to the execution of arbitrary code.

ID	Name	Product	Family	Severity
183111	Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM / 22.04 ESM : Roundcube Webmail vulnerabilities (USN-5182-1)	Nessus	Ubuntu Local Security Checks	critical
137685	Fedora 32 : roundcubemail (2020-aeffd92b77)	Nessus	Fedora Local Security Checks	critical
137678	Fedora 31 : roundcubemail (2020-2a1a6a8432)	Nessus	Fedora Local Security Checks	critical
137373	Debian DSA-4700-1 : roundcube - security update	Nessus	Debian Local Security Checks	medium

Detections

Analytics

CVE-2020-13965

medium

Tenable Plugins

critical

critical

critical

medium