EMS Master Calendar Cross Site Scripting

2018.06.05
Risk: Low
Local: No
Remote: Yes
CWE: CWE-79


CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

# Exploit Title: EMS Master Calendar < 8.0.0.20180520 - Reflected Cross-Site Scripting # Date: 2018-06-01 # Exploit Author: Chris Barretto # Vendor Homepage: https://www.emssoftware.com/ # Software Link: https://docs.emssoftware.com/Content/V44.1_ReleaseNotes.htm # Version: Versions prior to 8.0.0.201805210 are vulnerable # Tested on: Master Calendar v8.0.0.127 # CVE : CVE-2018-11628 # 1. Description: # Data input into EMS Master Calendar before 8.0.0.201805210 via URL parameters are not properly sanitized, # allowing malicious attackers to send a crafted URL and execute code in the context of the user's browser. #2. Proof of concept: # The following PoC URL is available: https://example.com/MasterCalendar/RssFeeds.aspx?Name=abc<script>alert('XSS')</script>xyz


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