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High Severity

Attachment: HTML smuggling with eval and atob via calendar invite

Description

Scans calendar invites (.ics files) to detect HTML smuggling techniques.

References

No references.

Sublime Security
Created Jun 3rd, 2025 • Last updated Sep 25th, 2025
Source
type.inbound
and any(attachments,
        (
          .file_extension =~ "ics"
          or .content_type == "text/calendar"
        )
        // usage: onerror="eval(atob('
        and regex.imatch(file.parse_text(.).text, ".*eval.{1,4}atob.*")
        
)
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