CVE-2015-3440

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 16.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2015-08-03 · updated 2026-06-17
Weakness: CWE-79

Description

Cross-site scripting (XSS) vulnerability in wp-includes/wp-db.php in WordPress before 4.2.1 allows remote attackers to inject arbitrary web script or HTML via a long comment that is improperly stored because of limitations on the MySQL TEXT data type.

Affected products

Debian Linux: 7.0, 8.0
WordPress: through 4.2

References

http://codex.wordpress.org/Version_4.2.1
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://osvdb.org/show/osvdb/121320
http://packetstormsecurity.com/files/131644/WordPress-4.2-Cross-Site-Scripting.html
http://seclists.org/fulldisclosure/2015/Apr/84
http://www.debian.org/security/2015/dsa-3250
http://www.securityfocus.com/bid/74334
http://www.securitytracker.com/id/1032199
https://core.trac.wordpress.org/changeset/32299
https://klikki.fi/adv/wordpress2.html

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