Vulnerability Details CVE-2019-10735
In Claws Mail 3.14.1, 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 33.9%
CVSS Severity
CVSS v3 Score 4.3
CVSS v2 Score 4.3
References
Products affected by CVE-2019-10735
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cpe:2.3:a:claws-mail:mail:3.14.1