#VU43331 Cross-site scripting in SMF - CVE-2012-5903

Vulnerability identifier: #VU43331

Vulnerability risk: Low

CVSSv4.0: 5.5 [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:P/U:Clear]

CVE-ID: CVE-2012-5903

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
SMF
Other software / Other software solutions

Vendor: Simple Machines

Description

Vulnerability allows a remote attacker to perform XSS attacks.

The vulnerability is caused by an input validation error in Simple Machines Forum (SMF) 2.0.2 when processing scheduled parameter to index.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

SMF: 2.0.2

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External links
https://osvdb.org/80766
https://packetstormsecurity.org/files/111356/SMF-2.0.2-Cross-Site-Scripting.html
https://www.securityfocus.com/bid/52822
https://exchange.xforce.ibmcloud.com/vulnerabilities/74521

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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.