Cross-site scripting in WordPress

1) Cross-site scripting

EUVDB-ID: #VU41062

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2014-9031

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

Vulnerability allows a remote attacker to perform Cross-site scripting attacks.

An input validation error exists in the wptexturize function in WordPress before 3.7.5, 3.8.x before 3.8.5, and 3.9.x before 3.9.3. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim's browser in security context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

WordPress: 3.7 - 3.9.2

CPE2.3

• cpe:2.3:a:wordpress_org:wordpress:3.7:*:*:*:*:*:*:*
• cpe:2.3:a:wordpress_org:wordpress:3.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:wordpress_org:wordpress:3.7.2:*:*:*:*:*:*:*
• cpe:2.3:a:wordpress_org:wordpress:3.7.3:*:*:*:*:*:*:*
• cpe:2.3:a:wordpress_org:wordpress:3.7.4:*:*:*:*:*:*:*
• cpe:2.3:a:wordpress_org:wordpress:3.8:*:*:*:*:*:*:*
• cpe:2.3:a:wordpress_org:wordpress:3.8.1:*:*:*:*:*:*:*
• cpe:2.3:a:wordpress_org:wordpress:3.8.2:*:*:*:*:*:*:*
• cpe:2.3:a:wordpress_org:wordpress:3.8.3:*:*:*:*:*:*:*
• cpe:2.3:a:wordpress_org:wordpress:3.8.4:*:*:*:*:*:*:*

External links

https://advisories.mageia.org/MGASA-2014-0493.html
https://klikki.fi/adv/wordpress.html
https://openwall.com/lists/oss-security/2014/11/25/12
https://seclists.org/fulldisclosure/2014/Nov/62
https://www.debian.org/security/2014/dsa-3085
https://www.mandriva.com/security/advisories?name=MDVSA-2014:233
https://www.securityfocus.com/bid/71237
https://www.securitytracker.com/id/1031243
https://wordpress.org/news/2014/11/wordpress-4-0-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.