Overview
RoundCube Webmail contains a cross-site scripting vulnerability. This vulnerability could allow 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.
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
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2024-42009 |
| Vendor / Product | Roundcube — Webmail |
| NVD Published | 2024-08-05 |
| NVD Last Modified | 2025-11-04 |
| CVSS 3.1 Score | 9.3 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N |
| Severity | CRITICAL |
| CWE | CWE-79 |
| CISA KEV Added | 2025-06-09 |
| CISA KEV Deadline | 2025-06-30 |
| Known Ransomware Use | No |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Required Action
CISA BOD 22-01 Deadline: 2025-06-30.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Timeline
| Date | Event |
|---|---|
| 2025-06-09 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2025-06-30 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2024-42009 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |