High Severity

Link: SVG with embedded recipient data

Description

Detects SVG links that contain the recipient's email address either in plain text or base64 encoded format within the URL, indicating potential tracking or targeting mechanisms.

References

No references.

Sublime Security
Created Jun 12th, 2026 • Last updated Jun 12th, 2026
Source
type.inbound
and any(body.links,
        strings.iends_with(.href_url.path, '.svg')
        and any(recipients.to,
                .email.domain.valid
                // contained in the url
                and (
                  strings.icontains(..href_url.url, .email.email)
                  // or contains the base64 endcoded email
                  or any(strings.scan_base64(..href_url.url,
                                             format="url",
                                             ignore_padding=true
                         ),
                         strings.icontains(., ..email.email)
                  )
                )
        )
)
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