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Vulnerability record · CVE-2015-3440 · published 3 August 2015

CVE-2015-3440: Debian linux cross-site scripting vulnerability

Debian · Debian Linux

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.

4.3 CVSS 2.0 Medium EPSS 17% · top 3.0% CWE-79 · Cross-site scripting
4.3CVSS 2.0 base score
17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
30References, 8 tagged exploit
17 Jun 2026Last modified by NVD

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.

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_4.2.1
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 Exploit
http://seclists.org/fulldisclosure/2015/Apr/84 Exploit
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 Exploit
https://wordpress.org/news/2015/04/wordpress-4-2-1/ PatchVendor Advisory
https://wpvulndb.com/vulnerabilities/7945
https://www.exploit-db.com/exploits/36844/ Exploit
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 Exploit
http://seclists.org/fulldisclosure/2015/Apr/84 Exploit
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 Exploit
https://wordpress.org/news/2015/04/wordpress-4-2-1/ PatchVendor Advisory
https://wpvulndb.com/vulnerabilities/7945
https://www.exploit-db.com/exploits/36844/ Exploit

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Source: NIST National Vulnerability Database (record CVE-2015-3440), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.