CVE-2024-42009
Roundcube Webmail: Cross-Site Scripting
As of , CVE-2024-42009 in Roundcube Webmail is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.
- Exploited
- Yes: CISA listed it on 9 June 2025
- US federal deadline
- 30 June 202521 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Not known to CISA
- EPSS score
- 0.83Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- Public exploit
- None foundNeither Metasploit nor Exploit-DB lists one.
- Fix
- Vendor advice: roundcube.netLinks below, from CISA's entry.
What CISA says to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA's required action
What the flaw is
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.
CISA's 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.
The CVE record's description, from mitre
- CVE published
- 5 August 2024
- Assigned by
- mitre
- CVSS
- 9.3 Critical (CVSS 3.1, from CISA-ADP)
- CWE-79
- Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- no
- CISA SSVC, technical impact
- total
Timeline
- The CVE record was published.
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
Webmail: other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2025-49113Deserialization of Untrusted Data | Roundcube Webmail | Patch this weekMetasploit module; EPSS 0.99 | 0.99 | ||
| CVE-2024-37383Cross-Site Scripting (XSS) | Roundcube Webmail | Patch this weekEPSS 0.73 | 0.73 | ||
| CVE-2020-13965Cross-Site Scripting (XSS) | Roundcube Webmail | Patch this weekEPSS 0.77 | 0.77 | ||
| CVE-2023-43770Persistent Cross-Site Scripting (XSS) | Roundcube Webmail | Patch this weekEPSS 0.64 | 0.64 | ||
| CVE-2023-5631Persistent Cross-Site Scripting (XSS) | Roundcube Webmail | Patch this weekEPSS 0.76 | 0.76 | ||
| CVE-2025-68461Cross-site Scripting | Roundcube Webmail | Patch soon | 0.27 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org