CVE-2024-42008
A Cross-Site Scripting vulnerability in rcmail_action_mail_get->run() 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 malicious e-mail attachment served with a dangerous Content-Type…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 34.2%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
A Cross-Site Scripting vulnerability in rcmail_action_mail_get->run() 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 malicious e-mail attachment served with a dangerous Content-Type header.
- CVSS 3.1
- 9.3 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
- EPSS
- 34.21% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- roundcube/webmail
- Source
- cve@mitre.org
EPSS moved from 34.2% on 26 September 2026 to 34.2% on 3 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://github.com/roundcube/roundcubemail/releasesRelease Notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.5.8Release Notes
- https://github.com/roundcube/roundcubemail/releases/tag/1.6.8Release Notes
- https://roundcube.net/news/2024/08/04/security-updates-1.6.8-and-1.5.8Vendor Advisory
- https://sonarsource.com/blog/government-emails-at-risk-critical-cross-site-scripting-vulnerability-in-roundcube-webmail/Technical Description
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.