CVE-2015-3440
Cross-site scripting (XSS) vulnerability in wp-includes/wp-db.php in WordPress before 4.2.1...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2015-3440- CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2015-3440- Updated
- 2026-11-02
EUVDEUVD-2015-3484 No score
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.
- Record
EUVD-2015-3484- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-xg6f-394q-j4f9 No score
Cross-site scripting (XSS) vulnerability in wp-includes/wp-db.php in WordPress before 4.2.1...
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.
- Record
GHSA-xg6f-394q-j4f9- Weakness
- CWE-79
- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2015-3440- Updated
- 2026-11-02
OSVDEBIAN-CVE-2015-3440 No score
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.
- Record
DEBIAN-CVE-2015-3440- Updated
- 2026-11-02
OSVMGASA-2015-0202 No score
Updated wordpress packages fix security vulnerabilities
Updated wordpress packages fixes security vulnerabilities:
The wordpress package has been updated to version 3.9.6, which fixes multiple cross-site scripting issues, including CVE-2015-3440, and other bugs.
Note that upstream has advised us that WordPress 3.9.x is no longer supported. As this package is unmaintained, this may be the last update for this package. Downloading the latest version from upstream and using that, as well as making use of its aut-update capability, may be preferrable to using this package.
- Record
MGASA-2015-0202- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
wordpressDebian:12 |
before 4.2.1+dfsg-1 | 4.2.1+dfsg-1 |
wordpressDebian:13 |
before 4.2.1+dfsg-1 | 4.2.1+dfsg-1 |
wordpressDebian:14 |
before 4.2.1+dfsg-1 | 4.2.1+dfsg-1 |
wordpressDebian:6.0 |
before 3.6.1+dfsg-1~deb6u6, plus listed versions 3.0.4+dfsg-13.0.5+dfsg-0+squeeze13.0.5+dfsg-13.2.1+dfsg-13.2.1+dfsg-2 Show 22 moreShow less3.2.1+dfsg-33.3+dfsg-13.3.1+dfsg-13.3.2+dfsg-13.3.2+dfsg-1~squeeze13.4+dfsg-13.4+dfsg-23.4+dfsg-33.4.1+dfsg-13.4.2+dfsg-13.5+dfsg-13.5.1+dfsg-13.5.1+dfsg-23.5.2+dfsg-13.5.2+dfsg-1~deb6u13.5.2+dfsg-1~deb7u13.6+dfsg-13.6.1+dfsg-1~deb6u13.6.1+dfsg-1~deb6u23.6.1+dfsg-1~deb6u33.6.1+dfsg-1~deb6u43.6.1+dfsg-1~deb6u5 |
3.6.1+dfsg-1~deb6u6 |
wordpressDebian:7 |
before 3.6.1+dfsg-1~deb7u6, plus listed versions 3.5.1+dfsg-23.5.2+dfsg-13.5.2+dfsg-1~deb6u13.5.2+dfsg-1~deb7u13.6+dfsg-1 Show 14 moreShow less3.6.1+dfsg-1~deb6u13.6.1+dfsg-1~deb6u23.6.1+dfsg-1~deb6u33.6.1+dfsg-1~deb6u43.6.1+dfsg-1~deb6u53.6.1+dfsg-1~deb6u63.6.1+dfsg-1~deb6u73.6.1+dfsg-1~deb6u83.6.1+dfsg-1~deb6u93.6.1+dfsg-1~deb7u13.6.1+dfsg-1~deb7u23.6.1+dfsg-1~deb7u33.6.1+dfsg-1~deb7u43.6.1+dfsg-1~deb7u5 |
3.6.1+dfsg-1~deb7u6 |
wordpressDebian:8 |
before 4.1+dfsg-1+deb8u1, plus listed versions 4.1+dfsg-1 |
4.1+dfsg-1+deb8u1 |
wordpressMageia:4 |
before 3.9.6-1.mga4 | 3.9.6-1.mga4 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | WordPress Core 4.2 - Persistent Cross-Site Scripting | 2015-04-27 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2015-3440 is a medium vulnerability (CVSS 4.3) in Wordpress, published May 4, 2015. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 16.9%, the 97th percentile. Fixed in wordpress 4.2.1+dfsg-1.
References
exploit-db.com/exploits/36844
lists.fedoraproject.org/pipermail/package-announce/2015-May/157391.html
codex.wordpress.org/Version_4.2.1
klikki.fi/adv/wordpress2.html
wpvulndb.com/vulnerabilities/7945
wordpress.org/news/2015/04/wordpress-4-2-1
Show 16 moreShow less
securityfocus.com/bid/74334
seclists.org/fulldisclosure/2015/Apr/84
core.trac.wordpress.org/changeset/32299
osvdb.org/show/osvdb/121320
securitytracker.com/id/1032199
debian.org/security/2015/dsa-3250
packetstormsecurity.com/files/131644/WordPress-4.2-Cross-Site-Scripting.html
nvd.nist.gov/vuln/detail/CVE-2015-3440
github.com/advisories/GHSA-xg6f-394q-j4f9
security-tracker.debian.org/tracker/CVE-2015-3440
advisories.mageia.org/MGASA-2015-0202.html
bugs.mageia.org/show_bug.cgi?id=15786