Cross-site scripting in PortlandLabs concrete5

1) Cross-site scripting

EUVDB-ID: #VU43234

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2012-5181

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 concrete5 Japanese 5.5.1 through 5.5.2.1 and concrete5 English 5.5.0 through 5.6.0.2. 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

concrete5: 5.5.0 - 5.6.0.2

External links

http://concrete5-japan.org/news/concrete5602ja-release/
http://jvn.jp/en/jp/JVN65458431/index.html
http://jvndb.jvn.jp/jvndb/JVNDB-2012-000113

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.