Cross-site scripting in GetSimple CMS

1) Cross-site scripting

EUVDB-ID: #VU41672

Risk: Low

CVSSv3.1: 5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:U/RC:C]

CVE-ID: CVE-2014-1603

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

Exploit availability: Yes

Description

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

An input validation error exists in GetSimple CMS 3.3.1 when processing the (1) param parameter to admin/load.php or (2) user, (3) email, or (4) name parameter in a Save Settings action to admin/settings.php. 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: 3.3.1

External links

http://seclists.org/fulldisclosure/2014/May/53
http://www.securityfocus.com/bid/67337
http://raw.githubusercontent.com/pedrib/PoC/master/getsimplecms-3.3.1.txt

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. However, proof of concept for this vulnerability is available.