| Package | Affected versions | Patched versions |
|---|---|---|
| wordpress | ≤ 4.2.3 |
The sanitize_widget_instance function in wp-includes/class-wp-customize-widgets.php in WordPress before 4.2.4 does not use a constant-time comparison for widgets, which allows remote attackers to conduct a timing side-channel attack by measuring the delay before inequality is calculated.
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