CVE-2024-42009
RoundCube Webmail Cross-Site Scripting Vulnerability
- Published
- Aug 5, 2024
- Updated
- Oct 21, 2025
- Assigning CNA
- mitre
- Evidence observed
- Jun 9, 2025
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:NHigh · next 30 days
- Percentile
- 99.7%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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.
Sources
http/cves/2024/CVE-2024-42009.yaml
Nuclei TemplatesDeclared conditions
- network: http($.protocol_keys)
- verification: dsl,status,word($.matchers[*].type)
- CVE-2024-42009Exploit
This script exploits a stored XSS vulnerability (CVE-2024-42009) in Roundcube Webmail version 1.6.7. It injects a malicious payload into the webmail system, which, when triggered, exfiltrates email content from the victim’s inbox.
Responsible use
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