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Date: Fri, 3 Apr 2015 00:27:20 +0800
From: Jing Wang <>
Subject: [FD] Proverbs Web Calendar 2.1.2 XSS (Cross-site Scripting)
	Security Vulnerabilities

*Proverbs Web Calendar 2.1.2 XSS (Cross-site Scripting) Security

Exploit Title: Proverbs Web Calendar /calendar.php Multiple Parameters XSS
(Cross-site Scripting) Security Vulnerabilities
Vendor: Proverbs
Product: Proverbs Web Calendar
Vulnerable Versions: 1.0.0   1.1   1.2.2   2.1   2.1.2
Tested Version: 1.2.2   2.1
Advisory Publication: April 03, 2015
Latest Update: April 03, 2015
Vulnerability Type: Cross-Site Scripting [CWE-79]
CVE Reference: *
Impact CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.3 (MEDIUM) (AV:N/AC:M/Au:N/C:N/I:P/A:N) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6
Writer and Reporter: Wang Jing [CCRG, Nanyang Technological University
(NTU), Singapore]

*Suggestion Details:*

*(1) Vendor & Product Description:*


*Product & Vulnerable Versions:*
Proverbs Web Calendar

*Vendor URL:*

Proverbs Web Calendar can be obtained from here,

*Product Introduction Overview:*
"This is a web event calendar developed using PHP and powered by MySQL. The
calendar is viewed in month format initially with a detailed view of daily
events as each calendar day is clicked on. The calendar is customizable
within a single file; allowing changes to the title, color choices,
calendar language, starting day of the week, time format(24hr/12hr), time
zone display and more"

*(2) Vulnerability Details:*
Proverbs Web Calendar web application has a security bug problem. It can be
exploited by XSS attacks. This may allow a remote attacker to create a
specially crafted request that would execute arbitrary script code in a
user's browser session within the trust relationship between their browser
and the server.

Several Proverbs Web Calendar products 0-day vulnerabilities have been
found by some other bug hunter researchers before. Proverbs has patched
some of them. The is archive of exploits, videos, papers and
vulnerabilities. It has published suggestions, advisories, solutions
details related to Proverbs Web Calendar vulnerabilities.

*(2.1)* The first code programming flaw occurs at "/calendar.php" page with
"&day", "&month" and "&year" parameters.


Wang Jing,
Division of Mathematical Sciences (MAS),
School of Physical and Mathematical Sciences (SPMS),
Nanyang Technological University (NTU),

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