[kmail2] [Bug 480193] New: KMail QML HTML injection via --subject and --attach

[Benjamin Flesch]

https://bugs.kde.org/show_bug.cgi?id=480193

            Bug ID: 480193
           Summary: KMail QML HTML injection via --subject and --attach
    Classification: Applications
           Product: kmail2
           Version: unspecified
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: composer
          Assignee: kdepim-bugs@kde.org
          Reporter: benjaminfle...@icloud.com
  Target Milestone: ---

SUMMARY
***
HTML injection into KMail UI
afaik not security issue because external image urls are not followed
***


STEPS TO REPRODUCE
1. kmail --composer --body '' --attach '<h1>HTML Injection bf</h1><img
source="https://www.spyber.com/sig-25163.png";  width="100" height="100" />'
2. kmail --composer --attach 'asdasd <h1>HTML Injection @bf</h1><img src="0" />
' --subject '<h1>injectko</h1>asdasd'


OBSERVED RESULT
custom HTML in kmail UI and alert dialogs

EXPECTED RESULT
no custom HTML in kmail UI


SOFTWARE/OS VERSIONS
kmail2 5.24.4 (23.08.4)

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