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Debian dla-4604 : roundcube - security update
medium Nessus Plugin ID 317444
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Synopsis
The remote Debian host is missing one or more security-related updates.Description
The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4604 advisory.------------------------------------------------------------------------- Debian LTS Advisory DLA-4604-1 [email protected] https://www.debian.org/lts/security/ Guilhem Moulin May 28, 2026 https://wiki.debian.org/LTS
-------------------------------------------------------------------------
Package : roundcube Version : 1.4.15+dfsg.1-1+deb11u9 CVE ID : CVE-2026-48842 CVE-2026-48843 CVE-2026-48844 CVE-2026-48845 CVE-2026-48846 CVE-2026-48847 CVE-2026-48848 CVE-2026-48849 Debian Bug : 1132838 1137507
Multiple vulnerabilities were discovered in Roundcube, a skinnable AJAX based webmail solution for IMAP servers, which could result in cross-site scripting, SQL injection, server-side request forgery, information disclosure, code injection, or deletion of arbitrary files.
CVE-2026-48842
Pre-authentication SQL injection in `virtuser_query` plugin via `preg_replace()` backslash escape bypass.
CVE-2026-48843
Server-Side Request Forgery (SSRF) vulnerability via stylesheet links to a specific local address URLs. This issues stems from an insufficient fix for CVE-2026-35540.
CVE-2026-48844
Code injection vulnerability via code evaluation support in LDAP's `autovalues` option. Code evaluation support has been removed in this update.
CVE-2026-48845
Local/private URL fetch bypass when remote resources were not allowed. This allows attackers to bypass remote image blocking to potentially bypass access control.
CVE-2026-48846
Bypass of remote image blocking via CSS `var()`. This allows attackers to bypass remote image blocking to track email open action or potentially bypass access control.
CVE-2026-48847
Pre-authentication arbitrary file delete via redis/memcache session poisoning bypass.
CVE-2026-48848
CSS injection bypass in HTML sanitizer via SVG `<animate attributeName=style>`.
CVE-2026-48849
Stored XSS/HTML/CSS injection in subject field of the draft restore dialog.
For Debian 11 bullseye, these problems have been fixed in version 1.4.15+dfsg.1-1+deb11u9.
We recommend that you upgrade your roundcube packages.
For the detailed security status of roundcube please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/roundcube
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: PGP signature
Tenable has extracted the preceding description block directly from the Debian security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade the roundcube packages.See Also
https://packages.debian.org/source/bullseye/roundcube
https://security-tracker.debian.org/tracker/CVE-2026-35540
https://security-tracker.debian.org/tracker/CVE-2026-48842
https://security-tracker.debian.org/tracker/CVE-2026-48843
https://security-tracker.debian.org/tracker/CVE-2026-48844
https://security-tracker.debian.org/tracker/CVE-2026-48845
https://security-tracker.debian.org/tracker/CVE-2026-48846
https://security-tracker.debian.org/tracker/CVE-2026-48847
https://security-tracker.debian.org/tracker/CVE-2026-48848
https://security-tracker.debian.org/tracker/CVE-2026-48849
https://security-tracker.debian.org/tracker/source-package/roundcube
Plugin Details
Severity: Medium
ID: 317444
File Name: debian_DLA-4604.nasl
Version: 1.2
Type: Local
Agent: unix
Family: Debian Local Security Checks
Published: 5/28/2026
Updated: 6/16/2026
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.9
Percentile: 58.04
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N
CVSS Score Source: CVE-2026-35540
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.9
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:roundcube, p-cpe:/a:debian:debian_linux:roundcube-core, p-cpe:/a:debian:debian_linux:roundcube-mysql, p-cpe:/a:debian:debian_linux:roundcube-pgsql, p-cpe:/a:debian:debian_linux:roundcube-plugins, p-cpe:/a:debian:debian_linux:roundcube-sqlite3
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 5/28/2026
Vulnerability Publication Date: 3/31/2026
Reference Information
CVE: CVE-2026-35540, CVE-2026-48842, CVE-2026-48843, CVE-2026-48844, CVE-2026-48845, CVE-2026-48846, CVE-2026-48847, CVE-2026-48848, CVE-2026-48849
IAVA: 2026-A-0301-S, 2026-A-0521