CVE-2024-42009 KEV
9.3
CRITICAL · CVSS 3.1 · EPSS 82.9% (pctl 100)
Patch first
On CISA KEV — known exploited in the wild, due 2025-06-30.
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.
Scoring
| CVSS | 9.3 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N |
| EPSS | 82.88% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-79 |
| On CISA KEV | yes — remediate by 2025-06-30 |
| Public exploit | none known |
| Published | 2024-08-05 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | RoundCube Webmail Cross-Site Scripting Vulnerability |
|---|---|
| Added | 2025-06-09 |
| Due | 2025-06-30 |
| Vendor / product | Roundcube / Webmail |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| roundcube | webmail |
References
- https://github.com/roundcube/roundcubemail/releases
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.8
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.8
- https://roundcube.net/news/2024/08/04/security-updates-1.6.8-and-1.5.8
- https://sonarsource.com/blog/government-emails-at-risk-critical-cross-site-scripting-vulnerability-in-roundcube-webmail/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-42009
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