Cross-site Scripting (XSS) Vulnerability in WebCalendar

This vulnerability was discovered by our security researchers before 2019.

69.4k
2
5
6
2
More
2
2

Advisory ID:	HTB22930
Product:	WebCalendar
Vendor:	k5n.us
Vulnerable Versions:	1.2.3 and probably prior
Tested Version:	1.2.3
Advisory Publication:	March 29, 2011 [without technical details]
Vendor Notification:	March 29, 2011
Public Disclosure:	April 12, 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)
Solution Status:	Fixed by Vendor
Discovered and Provided:	High-Tech Bridge Security Research Lab
Advisory Details:
High-Tech Bridge SA Security Research Lab has discovered vulnerability in WebCalendar which could be exploited to perform cross-site scripting attacks. 1) Cross-site scripting (XSS) vulnerability in WebCalendar The vulnerability exists due to input sanitation error in the "last_login" parameter in login.php and in the “color” parameter in colors.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]/login.php?last_login=123%22%3E%3Cscript%3Ealert%28document.coo kie%29;%3C/script%3E http://[host]/colors.php?color="><%73cript>alert(docum ent.cookie);</%73cript>
ImmuniWeb® AI Platform Test your application security with our award-winning AI technology and a contractual zero false-positives SLA: Get a Demo ImmuniWeb® Neuron Premium Web Application Security Scanning ImmuniWeb® On-Demand Compliance-Ready Web Penetration Testing ImmuniWeb® Continuous Continuous Web Scanning and Penetration Testing Get a Demo Solution:
Upgrade to WebCalendar 1.2.5

ImmuniWeb® AI Platform Test your application security with our award-winning AI technology and a contractual zero false-positives SLA: Get a Demo Get your free cyber risk exposure assessment ImmuniWeb® Discovery Continuous Threat Exposure Management ImmuniWeb® Neuron Premium Web Application Security Scanning ImmuniWeb® On-Demand Compliance-Ready Web Penetration Testing Get a Demo Get your free cyber risk exposure assessment
References:
[1] High-Tech Bridge Advisory HTB22930 - https://www.immuniweb.com/advisory/HTB22930 - Cross-site Scripting (XSS) Vulnerability in WebCalendar [2] WebCalendar - www.k5n.us - WebCalendar is a web-based calendar application. [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:

HTB22922: Multiple Vulnerabilities in phpAlbum.net

HTB22919: Multiple Vulnerabilities in Viscacha

69.4k
2
5
6
2
More
2
2

Have additional information to submit?
Please feel free to send us any additional information related to this Advisory, such as vulnerable versions, additional exploitation details and conditions, patches and other relevant details.