CVE-2024-42009

CVE Enrichment

CVSS: 9.3 CRITICAL
EPSS: 82.88%
EPSS Percentile: 99.67%
CISA KEV: YES — Known Exploited Vulnerability

Description

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.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: cve@mitre.org
Published: 06-Aug-2024 02:15
Last Modified: 17-Jun-2026 14:48
EPSS Date: 2026-10-10
CWE: CWE-79

CVSS Vector


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

CISA KEV Details

Date Added: 2025-06-09
Remediation Due: 2025-06-30
Known Ransomware Campaign Use: Unknown
Required Action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes: https://roundcube.net/news/2024/08/04/security-updates-1.6.8-and-1.5.8 ; https://nvd.nist.gov/vuln/detail/CVE-2024-42009

Affected Products / Versions

roundcube / webmail
Version / affected range: * · before (exclusive) 1.5.8
cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
roundcube / webmail
Version / affected range: * · from (inclusive) 1.6.0 · before (exclusive) 1.6.8
cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*

References

Last enrichment sync: 11-Oct-2026 13:12
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (2)

CVE-2024-42009 Recorded Future Identifies 85 High-Impact Vulnerabilities in July, Many Actively Exploited
CVE-2024-42009: Roundcube (n-day) TA458 Uses Half-Click Webmail Exploits to Steal Email and Establish Persistent Access

CVE (85)

Malware (5)

Threat Actors (11)

MITRE ATT&CK (5)

Vendors (26)

Products (75)

Tools (2)

Industries (5)

Countries (6)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.