Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 79.6%; technical severity is CVSS 9.3.
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.
Who should care
- Teams operating Webmail
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Webmail is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- GitHub Security release notes Releases
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Treatment intelligence
Remediation intelligence
Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.
Verification noteAutomated link verification has not completed for this guidance yet.
Upgrade
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
- CWE
- CWE-79
- Affected versions
- Roundcube Webmail (End Excluding 1.5.8 | Start Including 1.6.0, End Excluding 1.6.8)
- Fixed versions
- Roundcube Webmail (Fixed from 1.5.8, 1.6.8)
- Published
- 5 August 2024
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 79.6%
- Signal calculated at 82