CVE-2015-5730
MEDIUM severity · CVSS 5 · Information disclosure
5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impact—
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)10%
AV:N/AC:L/Au:N/C:P/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://codex.wordpress.org/Version_4.2.4 ↗
Additional information
- NVD record
- https://codex.wordpress.org/Version_4.2.4Patch
- https://wordpress.org/news/2015/08/wordpress-4-2-4-security-and-maintenance-release/Patch
- http://openwall.com/lists/oss-security/2015/08/04/7
- http://www.debian.org/security/2015/dsa-3332
- http://www.securityfocus.com/bid/76160
- http://www.securitytracker.com/id/1033178
- https://core.trac.wordpress.org/changeset/33535
- https://core.trac.wordpress.org/changeset/33536