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BlackCat CMS 1.0.3 Cross Site Scripting

BlackCat CMS 1.0.3 Cross Site Scripting
Posted Sep 3, 2014
Authored by High-Tech Bridge SA | Site htbridge.com

BlackCat CMS version 1.0.3 suffers from a cross site scripting vulnerability.

tags | exploit, xss
advisories | CVE-2014-5259
SHA-256 | fafc7f992e0efbd75e5e5533c4fb06f99f20b956f59f1d75cf78cda120736a55

BlackCat CMS 1.0.3 Cross Site Scripting

Change Mirror Download
Advisory ID: HTB23228
Product: BlackCat CMS
Vendor: Black Cat Development
Vulnerable Version(s): 1.0.3 and probably prior
Tested Version: 1.0.3
Advisory Publication: August 13, 2014 [without technical details]
Vendor Notification: August 13, 2014
Vendor Patch: August 13, 2014
Public Disclosure: September 3, 2014
Vulnerability Type: Cross-Site Scripting [CWE-79]
CVE Reference: CVE-2014-5259
Risk Level: Medium
CVSSv2 Base Score: 4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Solution Status: Solution Available
Discovered and Provided: High-Tech Bridge Security Research Lab ( https://www.htbridge.com/advisory/ )

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Advisory Details:

High-Tech Bridge Security Research Lab discovered vulnerability in BlackCat CMS, which can be exploited to perform Cross-Site Scripting (XSS) attacks.


1) Reflected Cross-Site Scripting (XSS) in BlackCat CMS: CVE-2014-5259

The vulnerability exists due to insufficient sanitization of the "msg" HTTP GET parameter passed to "/modules/lib_jquery/plugins/cattranslate/cattranslate.php" script. A remote attacker can trick a logged-in user to open a specially crafted link and execute arbitrary HTML and script code in browser in context of the vulnerable website. Successful exploitation of the vulnerability may allow an attacker to steal sensitive information, alter website pages and perform phishing attacks.

The exploitation example below uses the "alert()" JavaScript function to display "immuniweb" word:

http://[host]/modules/lib_jquery/plugins/cattranslate/cattranslate.php?msg=%3Cscript%3Ealert%28/immuniweb/%29;%3C/script%3E

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Solution:

Apply vendor's patch:
http://forum.blackcat-cms.org/viewtopic.php?f=2&t=263

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References:

[1] High-Tech Bridge Advisory HTB23228 - https://www.htbridge.com/advisory/HTB23228 - Reflected Cross-Site Scripting (XSS) in BlackCat CMS.
[2] BlackCat CMS - http://blackcat-cms.org/ - BlackCat CMS ist ein einfach zu bedienendes, ├╝bersichtliches und vielseitig einsetzbares Content Management System.
[3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - international in scope and free for public use, CVE® is a dictionary of publicly known information security vulnerabilities and exposures.
[4] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types.
[5] ImmuniWeb® SaaS - https://www.htbridge.com/immuniweb/ - hybrid of manual web application penetration test and cutting-edge vulnerability scanner available online via a Software-as-a-Service (SaaS) model.

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Disclaimer: The information provided in this Advisory is provided "as is" and without any warranty of any kind. Details of this Advisory may be updated in order to provide as accurate information as possible. The latest version of the Advisory is available on web page [1] in the References.
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