CVE-2015-3438

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2015-08-05 · updated 2026-06-17
Weakness: CWE-79

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.

Affected products

Debian Linux: 7.0, 8.0
WordPress: through 4.1.1

References

http://codex.wordpress.org/Version_4.1.2
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/
https://wordpress.org/news/2015/04/wordpress-4-1-2/
https://wpvulndb.com/vulnerabilities/7929
http://codex.wordpress.org/Version_4.1.2
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157391.html

Get alerted when CVE-2015-3438 or the next vulnerability affects your stack