Description
An issue was discovered in KDE KMail before 19.12.3. By using the proprietary (non-RFC6068) "mailto?attach=..." parameter, a website (or other source of mailto links) can make KMail attach local files to a composed email message without showing a warning to the user, as demonstrated by an attach=.bash_history value.
References (2)
Core 2
Core References
Patch, Vendor Advisory x_refsource_misc
https://cgit.kde.org/kmail.git/commit/?id=2a348eccd352260f192d9b449492071bbf2b34b1
Vendor Advisory x_refsource_misc
https://cgit.kde.org/kmail.git/tag/?h=v19.12.3
Scores
CVSS v3
6.5
EPSS
0.0027
EPSS Percentile
50.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Details
Status
published
Products (1)
kde/kmail
< 19.12.3
Published
Apr 17, 2020
Tracked Since
Feb 18, 2026