| Package | Affected versions | Patched versions |
|---|---|---|
| smartermail | ≥ 16.0.8495, < 16.0.8747 | 16.0.8747 |
SmarterTools SmarterMail 8495 through 8664 before 8747 allows stored XSS by using image/svg+xml and an uploaded SVG document. This occurs because the application tries to allow youtube.com URLs, but actually allows youtube.com followed by an @ character and an attacker-controlled domain name.
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