XSS in Roundcube Webmail
CVE-2024-42008
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.342 (98.4th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.359 · newest: 0.342 · change: -0.017
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/roundcube/roundcubemail/releases (Release Notes)
- sonarsource.com/blog/government-emails-at-risk-critical-cross-site-scripting-vu… (Technical Description)
- github.com/roundcube/roundcubemail/releases/tag/1.5.8 (Release Notes)
- github.com/roundcube/roundcubemail/releases/tag/1.6.8 (Release Notes)
- roundcube.net/news/2024/08/04/security-updates-1.6.8-and-1.5.8 (Vendor Advisory)
Frequently asked questions
- What is CVE-2024-42008?
- CVE-2024-42008 is a critical-severity vulnerability in Roundcube Webmail, classified under Cross-site Scripting. CVSS score: 9.3/10. Published 2024-08-05.
- How severe is CVE-2024-42008?
- Critical severity. CVSS v3 base score is 9.3 out of 10.
- Is CVE-2024-42008 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.