CVE-2015-5730

WordPress < 4.2.4 - Timing Side-Channel Attack via Widget Instance Sanitization

Title source: llm
STIX 2.1

Description

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.

References (9)

Core 9
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/76160
Mailing List mailing-list x_refsource_mlist
http://openwall.com/lists/oss-security/2015/08/04/7
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1033178
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2015/dsa-3332
Third Party Advisory x_refsource_misc
https://wpvulndb.com/vulnerabilities/8130
Patch, Vendor Advisory x_refsource_confirm
https://codex.wordpress.org/Version_4.2.4

Scores

EPSS 0.0954
EPSS Percentile 93.0%

Details

CWE
CWE-200
Status published
Products (1)
wordpress/wordpress < 4.2.3
Published Nov 09, 2015
Tracked Since Feb 18, 2026