CVE-2024-42008

Name: CVE-2024-42008
Creator: NVD / NIST
Published: 2024-08-05T19:15:38.153+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.3/10EPSS 32.27%

Last modified Jun 17, 2026

CVE-2024-42008 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. A Cross-Site Scripting vulnerability in rcmail_action_mail_get->run() 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 malicious e-mail attachment served with a dangerous Content-Type header.. EPSS estimates a 32.27% chance of exploitation in the next 30 days.

Description

A Cross-Site Scripting vulnerability in rcmail_action_mail_get->run() 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 malicious e-mail attachment served with a dangerous Content-Type header.

Metrics

CVSS 3.1

9.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

EPSS Probability

32.27%

98.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Roundcube	Webmail	< 1.5.8
Roundcube	Webmail	>= 1.6.0, < 1.6.8

References

https://github.com/roundcube/roundcubemail/releasesRelease Notes
https://github.com/roundcube/roundcubemail/releases/tag/1.5.8Release Notes
https://github.com/roundcube/roundcubemail/releases/tag/1.6.8Release Notes
https://roundcube.net/news/2024/08/04/security-updates-1.6.8-and-1.5.8Vendor Advisory
https://sonarsource.com/blog/government-emails-at-risk-critical-cross-site-scripting-vulnerability-in-roundcube-webmail/Technical Description

Timeline

Published: Aug 5, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-42008?

How severe is CVE-2024-42008?

CVE-2024-42008 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 32.27% probability of exploitation in the next 30 days.

How do I fix CVE-2024-42008?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-42008?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST