⚠ Actively exploited
Added to CISA KEV on 2025-06-09. Federal agencies required to patch by 2025-06-30. 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..
CVE-2024-42009 — Cross-site Scripting in Webmail
Severity
9.3CRITICALNVD
EPSS
91.4%
top 0.34%
CISA KEV
KEV
Added 2025-06-09
Due 2025-06-30
Exploit
PoC available
Public exploit / PoC exists
Affected products
Timeline
PublishedAug 5
KEV addedJun 9
KEV dueJun 30
Latest updateJan 8
CISA 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.
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:NExploitability: 2.8 | Impact: 5.8
Affected Packages1 packages
🔴Vulnerability Details
4💥Exploits & PoCs
1Nuclei▶
Roundcube Webmail - Cross-Site Scripting