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Vulnerability record · CVE-2024-42008 · published 5 August 2024

CVE-2024-42008: Roundcube webmail cross-site scripting vulnerability

Roundcube · Webmail

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.

9.3 CVSS 3.1 Critical EPSS 34% · top 1.6% CWE-79 · Cross-site scripting
9.3CVSS 3.1 base score
34%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2024-42008), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.