Cross-site Scripting (XSS) Vulnerabilities in Calendarix

This vulnerability was discovered by our security researchers before 2019.

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Advisory ID:	HTB22974
Product:	Calendarix
Vendor:	Vincent Hor
Vulnerable Versions:	0.8.20080808 and probably prior
Tested Version:	0.8.20080808
Advisory Publication:	April 26, 2011 [without technical details]
Vendor Notification:	April 26, 2011
Public Disclosure:	May 10, 2011
Vulnerability Type:	Cross-Site Scripting [CWE-79]
Risk Level:	Medium

CVSSv2 Base Score:	4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Discovered and Provided:	High-Tech Bridge Security Research Lab
Advisory Details:
High-Tech Bridge SA Security Research Lab has discovered multiple vulnerabilities in Calendarix which could be exploited to perform cross-site scripting attacks. 1) Cross-site scripting (XSS) vulnerabilities in Calendarix 1.1 The vulnerability exists due to input sanitation errors in URL in cal_login.php. A remote attacker can send a specially crafted HTTP request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website. Exploitation example: http://[host]/cal_login.php/%27%3E%3Cscript%3Ealert%28123%29;%3C/script%3E 1.2 The vulnerability exists due to input sanitation error in the "gocat" parameter in cal_catview.php. A remote attacker can send a specially crafted HTTP POST request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website. Exploitation example: <form action="http://[host]/cal_catview.php?catop=viewcat" method="post" name="main" /> <input type="hidden" name="gocat" value="'</script><script>alert(document.cookie);</script>"/> <input type="submit" value="submit"/> </form> 1.3 The vulnerability exists due to input sanitation errors in the "frmname" and "leftfooter" parameters in cal_date.php. A remote attacker can send a specially crafted HTTP request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website. Exploitation examples: http://[host]/cal_date.php?frmname=%3C/script%3E%3Cscript%3Ealert%28123%29;% 3C/script%3E http://[host]/cal_footer.inc.php?leftfooter=%3Cscript%3Ealert%28123%29;%3C /script%3E
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Currently we are not aware of any vendor-supplied patches or other solutions. The vendor was contacted in accordance to our Vendor Notification Policy but we didn't get any answer or feedback.

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References:
[1] High-Tech Bridge Advisory HTB22974 - https://www.immuniweb.com/advisory/HTB22974 - Cross-site Scripting (XSS) Vulnerabilities in Calendarix [2] Calendarix - calendarix.com - Calendarix is a powerful and easy to use web-based calendar that runs on PHP and MySQL. [3] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types.

Previous Security Advisories with CWE-79:

HTB22973: Cross-site Scripting (XSS) Vulnerability in AJAX Calendar

HTB22970: Multiple Vulnerabilities in PHPDug

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