| Package | Affected versions | Patched versions |
|---|---|---|
| drupal | ≥ 6.0, < 6.13 | 6.13 |
Drupal 6.x before 6.13 does not prevent users from modifying user signatures after the associated comment format has been changed to an administrator-controlled input format, which allows remote authenticated users to inject arbitrary web script, HTML, and possibly PHP code via a crafted user signature.
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