9.3

CVE-2024-42009

Warning

A Cross-Site Scripting vulnerability in Roundcube through 1.5.7 and 1.6.x through 1.6.7 allows a remote attacker to steal and send emails of a victim via a crafted e-mail message that abuses a Desanitization issue in message_body() in program/actions/mail/show.php.

Data is provided by the National Vulnerability Database (NVD)
RoundcubeWebmail Version < 1.5.8
RoundcubeWebmail Version >= 1.6.0 < 1.6.8

09.06.2025: CISA Known Exploited Vulnerabilities (KEV) Catalog

RoundCube Webmail Cross-Site Scripting Vulnerability

Vulnerability

RoundCube Webmail contains a cross-site scripting vulnerability. This vulnerability could allow a remote attacker to steal and send emails of a victim via a crafted e-mail message that abuses a Desanitization issue in message_body() in program/actions/mail/show.php.

Description

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Required actions
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 88.58% 0.995
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 9.3 2.8 5.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
134c704f-9b21-4f2e-91b3-4a467353bcc0 9.3 2.8 5.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.