CVE-2015-5734: n/a vulnerability

CVE-2015-5734: Cross-site scripting (XSS) vulnerability in the legacy theme preview implementation in wp-includes/theme.ph...

Cross-site scripting (XSS) vulnerability in the legacy theme preview implementation in wp-includes/theme.php in WordPress before 4.2.4 allows remote attackers to inject arbitrary web script or HTML via a crafted string.

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

Security readout for executives and security teams

CVE-2015-5734 is a WordPress core cross-site scripting issue in the legacy theme preview feature. A vulnerable site could let an attacker inject script or HTML through a crafted string. The practical concern is account/session abuse or malicious page changes if a trusted user is exposed. Exposure is limited to WordPress core versions before 4.2.4, including distributions that shipped vulnerable WordPress packages. Internet-facing WordPress sites are the main concern; hosted or managed environments depend on provider patch status. Prioritize remediation for any public WordPress site still running pre-4.2.4 code. This is an old issue, but unpatched legacy WordPress installations often carry multiple accumulated risks, so fixing core version drift is more important than treating this as an isolated bug. Mitigation focus: Upgrade WordPress core to 4.2.4 or a later supported release.; Apply Debian or distribution WordPress security updates where applicable.; Check vendor or hosting-provider guidance for managed WordPress environments..

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/33549CVE reference · x_refsource_CONFIRM
https://wpvulndb.com/vulnerabilities/8133CVE reference · x_refsource_MISC
https://codex.wordpress.org/Version_4.2.4CVE reference · x_refsource_CONFIRM
https://blog.sucuri.net/2015/08/persistent-xss-vulnerability-in-wordpress-explained.htmlCVE reference · x_refsource_MISC

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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