It was discovered that roundcube, a skinnable AJAX based webmail solution for IMAP servers, did not properly sanitize incoming mail messages. This would allow a remote attacker to perform a Cross-Side Scripting (XSS) attack.

This update for roundcubemail fixes the following issues :

roundcubemail was upgraded to 1.3.15

This is a security update to the LTS version 1.3. (boo#1175135)

  - Security: Fix cross-site scripting (XSS) via HTML     messages with malicious svg content [CVE-2020-16145]

  - Security: Fix cross-site scripting (XSS) via HTML     messages with malicious math content

From 1.3.14 (boo#1173792 -> CVE-2020-15562)

  - Security: Fix cross-site scripting (XSS) via HTML     messages with malicious svg/namespace

From 1.3.13

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

From 1.3.12

  - Security: Better fix for CVE-2020-12641 (boo#1171148)

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

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

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

From 1.3.11 (boo#1171148 -> CVE-2020-12641 boo#1171040 -> CVE-2020-12625 boo#1171149 -> CVE-2020-12640)

  - Enigma: Fix compatibility with Mail_Mime >= 1.10.5

  - Fix permissions on some folders created by     bin/install-jsdeps.sh script (#6930)

  - Fix bug where inline images could have been ignored if     Content-Id header contained redundant spaces (#6980)

  - Fix PHP Warning: Use of undefined constant LOG_EMERGE     (#6991)

  - Fix PHP warning: 'array_merge(): Expected parameter 2 to     be an array, null given in sendmail.inc (#7003)

  - Security: Fix XSS issue in handling of CDATA in HTML     messages

  - Security: Fix remote code execution via crafted     'im_convert_path' or 'im_identify_path' settings

  - Security: Fix local file inclusion (and code execution)     via crafted 'plugins' option

  - Security: Fix CSRF bypass that could be used to log out     an authenticated user (#7302)

From 1.3.10 (boo#1146286)

  - Managesieve: Fix so 'Create filter' option does not show     up when Filters menu is disabled (#6723)

  - Enigma: Fix bug where revoked users/keys were not greyed     out in key info

  - Enigma: Fix error message when trying to encrypt with a     revoked key (#6607)

  - Enigma: Fix 'decryption oracle' bug [CVE-2019-10740]     (#6638) 

  - Fix compatibility with kolab/net_ldap3 > 1.0.7 (#6785)

  - Fix bug where bmp images couldn't be displayed on some     systems (#6728)

  - Fix bug in parsing vCard data using PHP 7.3 due to an     invalid regexp (#6744)

  - Fix bug where bold/strong text was converted to     upper-case on html-to-text conversion (6758)

  - Fix bug in rcube_utils::parse_hosts() where %t, %d, %z     could return only tld (#6746)

  - Fix bug where Next/Prev button in mail view didn't work     with multi-folder search result (#6793)

  - Fix bug where selection of columns on messages list     wasn't working

  - Fix bug in converting multi-page Tiff images to Jpeg     (#6824)

  - Fix wrong messages order after returning to a     multi-folder search result (#6836)

  - Fix PHP 7.4 deprecation: implode() wrong parameter order     (#6866)

  - Fix bug where it was possible to bypass the     position:fixed CSS check in received messages (#6898)

  - Fix bug where some strict remote URIs in url() style     were unintentionally blocked (#6899)

  - Fix bug where it was possible to bypass the CSS jail in     HTML messages using :root pseudo-class (#6897)

  - Fix bug where it was possible to bypass href URI check     with data:application/xhtml+xml URIs (#6896)

From 1.3.9 (boo#1115718)

  - Fix TinyMCE download location (#6694)

  - Fix bug where a message/rfc822 part without a filename     wasn't listed on the attachments list (#6494)

  - Fix handling of empty entries in vCard import (#6564)

  - Fix bug in parsing some IMAP command responses that     include unsolicited replies (#6577)

  - Fix PHP 7.2 compatibility in debug_logger plugin (#6586)

  - Fix so ANY record is not used for email domain     validation, use A, MX, CNAME, AAAA instead (#6581)

  - Fix so mime_content_type check in Installer uses files     that should always be available (i.e. from     program/resources) (#6599)

  - Fix missing CSRF token on a link to download too-big     message part (#6621)

  - Fix bug when aborting dragging with ESC key didn't stop     the move action (#6623)

  - Fix bug where next row wasn't selected after deleting a     collapsed thread (#6655)

From 1.3.8 

  - Fix PHP warnings on dummy QUOTA responses in     Courier-IMAP 4.17.1 (#6374)

  - Fix so fallback from BINARY to BODY FETCH is used also     on [PARSE] errors in dovecot 2.3 (#6383)

  - Enigma: Fix deleting keys with authentication subkeys     (#6381)

  - Fix invalid regular expressions that throw warnings on     PHP 7.3 (#6398)

  - Fix so Classic skin splitter does not escape out of     window (#6397)

  - Fix XSS issue in handling invalid style tag content     (#6410)

  - Fix compatibility with MySQL 8 - error on 'system' table     use

  - Managesieve: Fix bug where show_real_foldernames setting     wasn't respected (#6422)

  - New_user_identity: Fix %fu/%u vars substitution in user     specific LDAP params (#6419)

  - Fix support for 'allow-from <uri>' in 'x_frame_options'     config option (#6449)

  - Fix bug where valid content between HTML comments could     have been skipped in some cases (#6464)

  - Fix multiple VCard field search (#6466)

  - Fix session issue on long running requests (#6470)

From 1.3.7 (boo#1115719)

  - Fix PHP Warning: Use of undefined constant IDNA_DEFAULT     on systems without php-intl (#6244)

  - Fix bug where some parts of quota information could have     been ignored (#6280)

  - Fix bug where some escape sequences in html styles could     bypass security checks

  - Fix bug where some forbidden characters on Cyrus-IMAP     were not prevented from use in folder names

  - Fix bug where only attachments with the same name would     be ignored on zip download (#6301)

  - Fix bug where unicode contact names could have been     broken/emptied or caused DB errors (#6299)

  - Fix bug where after 'mark all folders as read' action     message counters were not reset (#6307)

  - Enigma: [EFAIL] Don't decrypt PGP messages with no MDC     protection (#6289)

  - Fix bug where some HTML comments could have been     malformed by HTML parser (#6333)

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.

ID	Name	Product	Family	Published	Updated	Severity
138226	Debian DSA-4720-1 : roundcube - security update	Nessus	Debian Local Security Checks	7/9/2020	7/17/2020	medium
141069	openSUSE Security Update : roundcubemail (openSUSE-2020-1516)	Nessus	SuSE Local Security Checks	9/30/2020	2/16/2024	critical
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	10/16/2023	8/27/2024	critical

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