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Vulnerability record · CVE-2015-3438 · published 5 August 2015

CVE-2015-3438: Wordpress cross-site scripting vulnerability

Wordpress · Wordpress

Multiple cross-site scripting (XSS) vulnerabilities in WordPress before 4.1.2, when MySQL is used without strict mode, allow remote attackers to inject arbitrary web script or HTML via a (1) four-byte UTF-8 character or (2) invalid character that reaches the database layer, as demonstrated by a crafted character in a comment.

4.3 CVSS 2.0 Medium EPSS 7.4% · top 5.8% CWE-79 · Cross-site scripting
4.3CVSS 2.0 base score
7.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
20References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Multiple cross-site scripting (XSS) vulnerabilities in WordPress before 4.1.2, when MySQL is used without strict mode, allow remote attackers to inject arbitrary web script or HTML via a (1) four-byte UTF-8 character or (2) invalid character that reaches the database layer, as demonstrated by a crafted character in a comment.

AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://codex.wordpress.org/Version_4.1.2 Patch
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157391.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158271.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158278.html
http://www.debian.org/security/2015/dsa-3250
http://www.securityfocus.com/bid/74269
http://www.securitytracker.com/id/1032207
https://cedricvb.be/post/wordpress-stored-xss-vulnerability-4-1-2/ Exploit
https://wordpress.org/news/2015/04/wordpress-4-1-2/ PatchVendor Advisory
https://wpvulndb.com/vulnerabilities/7929
http://codex.wordpress.org/Version_4.1.2 Patch
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157391.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158271.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158278.html
http://www.debian.org/security/2015/dsa-3250
http://www.securityfocus.com/bid/74269
http://www.securitytracker.com/id/1032207
https://cedricvb.be/post/wordpress-stored-xss-vulnerability-4-1-2/ Exploit
https://wordpress.org/news/2015/04/wordpress-4-1-2/ PatchVendor Advisory
https://wpvulndb.com/vulnerabilities/7929

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2015-3438), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.