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ESB-2026.3145 PUBLISHED CVSS 8.800000190734863 HIGH

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3145 USN-8132-1: Roundcube Webmail vulnerabilities 31 March 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: Roundcube Webmail Publisher: Ubuntu Operating System: Ubuntu Resolution: Patch/Upgrade CVE Names: CVE-2018-9846 CVE-2016-4068 CVE-2016-4069 CVE-2016-9920 CVE-2017-6820 CVE-2017-8114 CVE-2018-1000071 CVE-2018-19205 CVE-2019-10740 CVE-2018-19206 Original Bulletin: https://ubuntu.com/security/notices/USN-8132-1 Comment: CVSS (Max): 8.8 CVE-2018-9846 (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) CVSS Source: Ubuntu Calculator: https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H EPSS (Max): 44.8% (97th) CVE-2016-9920 2026-03-30 - --------------------------BEGIN INCLUDED TEXT-------------------- USN-8132-1: Roundcube Webmail vulnerabilities Publication date 30 March 2026 Overview Several security issues were fixed in Roundcube Webmail. Releases 18.04 LTS 16.04 LTS --------------------------------------------------------------------------------- Open side navigation Packages o roundcube - skinnable AJAX based webmail solution for IMAP servers - metapack Details It was discovered that Roundcube Webmail did not properly sanitize certain HTML elements within the e-mail body. An attacker could possibly use this issue to cause a cross-site scripting attack. This issue was only addressed in Ubuntu 16.04 LTS. ( CVE-2016-4068 , CVE-2016-4069 ) It was discovered that Roundcube Webmail did not properly handle certain configuration parameters. An attacker could possibly use this issue to execute arbitrary code. This issue was only addressed in Ubuntu 16.04 LTS. ( CVE-2016-9920 ) It was discovered that Roundcube Webmail did not properly sanitize CSS styles within SVG documents. An attacker could possibly use this issue to cause a cross-site scripting attack. This issue was only addressed in Ubuntu 16.04 LTS. ( CVE-2017-6820 ) It was discovered that Roundcube Webmail did not properly restrict exec call in certain drivers of the password plugin. An authenticated user could possibly use this issue to perform arbitrary password resets. This issue was only addressed in Ubuntu 16.04 LTS. ( CVE-2017-8114 ) It was discovered that Roundcube Webmail did not properly set file permissions within the Enigma plugin. An attacker could possibly use this issue to exfiltrate GPG private keys via network connectivity. ( CVE-2018-1000071 ) It was discovered that Roundcube Webmail did not properly handle GnuPG MDC integrity-protection warnings. An attacker could possibly use this issue to obtain sensitive information from encrypted communications. ( CVE-2018-19205 ) It was discovered that Roundcube Webmail did not properly sanitize and tags within HTML attachments. An attacker could possibly use this issue to cause a cross-site scripting attack. ( CVE-2018-19206 ) It was discovered that Roundcube Webmail did not properly handle partially encrypted multipart messages. An attacker could possibly use this issue to cause leaking of the plaintext of encrypted messages via an email reply. ( CVE-2019-10740 ) It was discovered that Roundcube Webmail did not properly sanitize a certain parameter within the archive plugin. An attacker could possibly use this issue to perform an IMAP injection attack. This issue was only addressed in Ubuntu 16.04 LTS. ( CVE-2018-9846 ) --------------------------------------------------------------------------------- Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu Package Version Release roundcube-core - 1.3.6+dfsg.1-1ubuntu0.1~esm7 Ubuntu Pro Fix 18.04 available with Ubuntu Pro via ESM Apps. A community fix might become LTS publicly available in the future. bionic roundcube-plugins - 1.3.6+dfsg.1-1ubuntu0.1~esm7 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. roundcube-core - 1.2~beta+dfsg.1-0ubuntu1+esm7 Ubuntu Pro Fix 16.04 available with Ubuntu Pro via ESM Apps. A community fix might become LTS publicly available in the future. xenial roundcube-plugins - 1.2~beta+dfsg.1-0ubuntu1+esm7 Ubuntu Pro Fix available with Ubuntu Pro via ESM Apps. A community fix might become publicly available in the future. --------------------------------------------------------------------------------- References o CVE-2019-10740 o CVE-2018-9846 o CVE-2018-19206 o CVE-2018-19205 o CVE-2018-1000071 o CVE-2017-8114 o CVE-2017-6820 o CVE-2016-9920 o CVE-2016-4069 o CVE-2016-4068 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write the document quoted above, AUSCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AUSCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================

Risk Scores

CVSS v3.1
8.800000190734863
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
UbuntuRoundcube Webmail

Timeline

References

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