CVE-2015-5730: n/a vulnerability

CVE-2015-5730: The sanitize_widget_instance function in wp-includes/class-wp-customize-widgets.php in WordPress before 4.2...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 06:59 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old WordPress vulnerability fixed in WordPress 4.2.4. The issue involved timing differences in a widget comparison, which could let a remote attacker infer information from response timing. The public bundle does not show active exploitation or a CVSS score. Exposure is most likely limited to legacy WordPress installations running versions before 4.2.4, especially sites using widget customization paths. Current, routinely updated WordPress deployments should not be exposed to this specific issue. Treat this as a legacy hygiene issue. It should not outrank actively exploited or high-impact vulnerabilities, but any WordPress instance this old is operationally risky and should be upgraded or retired. Mitigation focus: Upgrade WordPress to 4.2.4 or later.; Prefer a currently supported WordPress release, not only the minimum fixed version.; Review vendor and distribution advisories for packaged WordPress builds..

Prepared: Jun 13, 2026, 21:45 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Nov 9, 2015, 11:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://wordpress.org/news/2015/08/wordpress-4-2-4-security-and-maintenance-release/CVE reference · x_refsource_CONFIRM
https://core.trac.wordpress.org/changeset/33535CVE reference · x_refsource_CONFIRM
https://wpvulndb.com/vulnerabilities/8130CVE reference · x_refsource_MISC
https://core.trac.wordpress.org/changeset/33536CVE reference · x_refsource_CONFIRM
https://codex.wordpress.org/Version_4.2.4CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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