Debian update for roundcube

Published: 2020-12-28

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2020-35730
CWE-ID	CWE-79
Exploitation vector	Network
Public exploit	Vulnerability #1 is being exploited in the wild.
Vulnerable software Subscribe	roundcube (Debian package) Operating systems & Components / Operating system package or component
Vendor	Debian

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Stored cross-site scripting

EUVDB-ID: #VU49153

Risk: High

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-35730

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can send a specially crafted email message in HTML or plain text and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Update roundcube package to version 1.3.16+dfsg.1-1~deb10u1.

Vulnerable software versions

roundcube (Debian package): 1.3.10+dfsg.1-1~deb10u1 - 1.3.15+dfsg.1-1~deb10u1

External links

http://www.debian.org/security/2020/dsa-4821

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.