Cross-site scripting in GetSimple CMS

1) Cross-site scripting

EUVDB-ID: #VU42145

Risk: Low

CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2013-7243

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 XSS attacks.

The vulnerability is caused by an input validation error in GetSimple CMS 3.1.2 and 3.2.3 when processing the (1) post-menu field to edit.php or (2) Display name field to settings.php. NOTE: The Custom Permalink Structure and Email Address fields are already covered by CVE-2012-6621. A remote 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

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

GetSimple CMS: 3.1.2 - 3.2.3

External links

http://osvdb.org/101922
http://packetstormsecurity.com/files/124711
http://exchange.xforce.ibmcloud.com/vulnerabilities/90191

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.