VULNERABILITY INTELLIGENCE
CVE-2019-10740
CVSS score4.3 MEDIUM
EPSS probability0.77%
CISA KEVNot currently listed
Published2019-04-07
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Description
In Roundcube Webmail before 1.3.10, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted part(s) can further be hidden using HTML/CSS or ASCII newline characters. This modified multipart email can be re-sent by the attacker to the intended receiver. If the receiver replies to this (benign looking) email, they unknowingly leak the plaintext of the encrypted message part(s) back to the attacker.
Weakness classification
- nvd@nist.gov: CWE-319
Primary references
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org — Exploit, Issue Tracking, Third Party Advisory
- cve@mitre.org — Third Party Advisory
- cve@mitre.org
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108