// For flags

CVE-2019-10740

 

Severity Score

4.3
*CVSS v3.1

Exploit Likelihood

< 1%
*EPSS

Affected Versions

6
*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

En Roundcube Webmail en versiones anteriores a la 1.3.10, un atacante en posesión de correos electrónicos cifrados S/MIME o PGP puede envolverlos como subparte dentro de un correo electrónico multiparte diseñado. La(s) parte(s) encriptada(s) puede ocultarse aún más usando caracteres HTML/CSS o de nueva línea ASCII. El atacante puede reenviar este correo electrónico multiparte modificado al destinatario previsto. Si el destinatario responde a este correo electrónico (de aspecto benigno), sin saberlo, filtra el texto plano de la(s) parte(s) del mensaje cifrado al atacante.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-04-03 CVE Reserved
  • 2019-04-07 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-319: Cleartext Transmission of Sensitive Information
CAPEC
Affected Vendors, Products, and Versions (6)