UpHeron
All vulnerabilities

Servers and applications

CVE-2024-42009

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.

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 9 Jun 2025.

Severity
Critical 9.3
Published
5 Aug 2024
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
1.5.8, 1.6.8
Sources
NVD

Affected software

SoftwareAffected versions
RoundcubeServers and applications · cpe:a:roundcube:webmail
  • Every version before 1.5.8
  • From 1.6.0 before 1.6.8

Known exploited

CISA name
RoundCube Webmail Cross-Site Scripting Vulnerability
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.
Due for US agencies
30 Jun 2025
Used in ransomware
Not known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2024-42009
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2024-42009