WordPress Comment Section HTML Injection Vulnerability

BID:74334

Info

WordPress Comment Section HTML Injection Vulnerability

Bugtraq ID: 74334
Class: Input Validation Error
CVE: CVE-2015-3440
Remote: Yes
Local: No
Published: Apr 26 2015 12:00AM
Updated: May 12 2015 07:51PM
Credit: Jouko Pynnonen
Vulnerable: WordPress WordPress 4.1.2
WordPress WordPress 4.1.1
WordPress WordPress 4.1
WordPress WordPress 3.9.2
WordPress WordPress 3.9.1
WordPress WordPress 3.9
WordPress WordPress 3.8.2
WordPress WordPress 3.8.1
WordPress WordPress 3.7.4
WordPress WordPress 3.7.1
WordPress WordPress 3.6.1
WordPress WordPress 3.6
WordPress WordPress 3.5.2
WordPress WordPress 3.5.1
WordPress WordPress 3.3.2
WordPress WordPress 3.2.2
WordPress WordPress 3.1.4
WordPress WordPress 3.1.3
WordPress WordPress 3.1.2
WordPress WordPress 3.1.1
WordPress WordPress 3.0.5
WordPress WordPress 3.0.4
WordPress WordPress 3.0.3
WordPress WordPress 3.0.2
WordPress WordPress 2.9.2
WordPress WordPress 2.9.1
WordPress WordPress 2.8.6
WordPress WordPress 2.8.5
WordPress WordPress 2.8.4
WordPress WordPress 2.8.3
WordPress WordPress 2.8.2
WordPress WordPress 2.8.1
WordPress WordPress 2.6.5
WordPress WordPress 2.6.2
WordPress WordPress 2.6.1
WordPress WordPress 2.5.1
WordPress WordPress 2.3.3
WordPress WordPress 2.3.2
WordPress WordPress 2.3.1
WordPress WordPress 2.2.3
WordPress WordPress 2.2.2
WordPress WordPress 2.2.1
WordPress WordPress 2.1.3
WordPress WordPress 2.1.2
WordPress WordPress 2.1.1
WordPress WordPress 2.0.11
WordPress WordPress 2.0.10
WordPress WordPress 2.0.7
WordPress WordPress 2.0.6
WordPress WordPress 2.0.5
WordPress WordPress 2.0.4
WordPress WordPress 2.0.3
WordPress WordPress 2.0.2
WordPress WordPress 2.0.1
WordPress WordPress 2.0
WordPress WordPress 1.5.2
WordPress WordPress 1.5.1 .3
WordPress WordPress 1.5.1 .2
WordPress WordPress 1.5.1
WordPress WordPress 1.5
WordPress WordPress 1.3.1
WordPress WordPress 1.2.2
WordPress WordPress 1.2.1
+ Gentoo Linux
WordPress WordPress 1.2
+ Gentoo Linux 1.4
+ Gentoo Linux
WordPress WordPress 0.71
WordPress WordPress 0.7
WordPress WordPress 4.2
WordPress WordPress 4.0.1
WordPress WordPress 4.0
WordPress WordPress 3.9.3
WordPress WordPress 3.9
WordPress WordPress 3.8.5
WordPress WordPress 3.8.4
WordPress WordPress 3.8.3
WordPress WordPress 3.8
WordPress WordPress 3.7.5
WordPress WordPress 3.7
WordPress WordPress 3.6
WordPress WordPress 3.5.0
WordPress WordPress 3.5
WordPress WordPress 3.4.2
WordPress WordPress 3.4.1
WordPress WordPress 3.4.0
WordPress WordPress 3.4
WordPress WordPress 3.3.3
WordPress WordPress 3.3.1
WordPress WordPress 3.3
WordPress WordPress 3.2.1
WordPress WordPress 3.2
WordPress WordPress 3.1
WordPress WordPress 3.0.6
WordPress WordPress 3.0.1
WordPress WordPress 2.9.1.1
WordPress WordPress 2.9
WordPress WordPress 2.8.5.2
WordPress WordPress 2.8.5.1
WordPress WordPress 2.8
WordPress WordPress 2.7.1
WordPress WordPress 2.7
WordPress WordPress 2.6.3
WordPress WordPress 2.6
WordPress WordPress 2.5
WordPress WordPress 2.3
WordPress WordPress 2.2
WordPress WordPress 2.1
WordPress WordPress 2.0.9
WordPress WordPress 2.0.8
WordPress WordPress 1.6.2
WordPress WordPress 1.5.1.1
WordPress WordPress 1.5
WordPress WordPress 1.3.3
WordPress WordPress 1.3.2
WordPress WordPress 1.3
WordPress WordPress 1.2.5
WordPress WordPress 1.2.4
WordPress WordPress 1.2.3
WordPress WordPress 1.1.1
WordPress WordPress 1.0.2
WordPress WordPress 1.0.1
WordPress WordPress 0.71
Debian Linux 6.0 sparc
Debian Linux 6.0 s/390
Debian Linux 6.0 powerpc
Debian Linux 6.0 mips
Debian Linux 6.0 ia-64
Debian Linux 6.0 ia-32
Debian Linux 6.0 arm
Debian Linux 6.0 amd64
Not Vulnerable: WordPress WordPress 4.2.1

Discussion

WordPress Comment Section HTML Injection Vulnerability

WordPress is prone to an HTML-injection vulnerability.

Successful exploits will allow attacker-supplied HTML and script code to run in the context of the affected browser, potentially allowing the attacker to steal cookie-based authentication credentials or control how the site is rendered to the user. Other attacks are also possible.

WordPress 4.2 and prior are vulnerable.

Exploit / POC

WordPress Comment Section HTML Injection Vulnerability

Attackers can exploit this issue using browser.

Solution / Fix

WordPress Comment Section HTML Injection Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

References

WordPress Comment Section HTML Injection Vulnerability

References:

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report