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.
CVSS Details
- CVSS 3.1 Base Score: 5.9
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade wordpress | Jul 30, 2024 | Nov 9, 2015 |
| Freebsd | — | Upgrade ru-wordpressUpgrade zh-wordpress-zh_CNUpgrade ja-wordpressUpgrade zh-wordpress-zh_TWUpgrade de-wordpressUpgrade wordpress | Dec 10, 2025 | Aug 6, 2015 |
| Wordpress | — | Upgrade Wordpress to version 4.2.4 | May 16, 2017 | Nov 9, 2015 |
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