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+# Exploit Title: ImportExportTools NG 10.0.4 - HTML Injection
+# Date: 2021-11-05
+# Exploit Author: Vulnerability Lab
+# Vendor Homepage: https://github.com/thundernest/import-export-tools-ng
+# Software Link: https://addons.thunderbird.net/en-US/thunderbird/addon/importexporttools-ng/
+# Version: 10.0.4
+# Tested on: Windows
+
+Document Title:
+===============
+ImportExportTools NG 10.0.4 - HTML Injection Vulnerability
+
+
+References (Source):
+====================
+https://www.vulnerability-lab.com/get_content.php?id=2308
+
+
+Release Date:
+=============
+2021-11-05
+
+
+Vulnerability Laboratory ID (VL-ID):
+====================================
+2308
+
+
+Common Vulnerability Scoring System:
+====================================
+4.2
+
+
+Vulnerability Class:
+====================
+Script Code Injection
+
+
+Current Estimated Price:
+========================
+1.000€ - 2.000€
+
+
+Product & Service Introduction:
+===============================
+Adds tools to import/export messages and folders (NextGen).
+
+(Copy of the Homepage:https://addons.thunderbird.net/en-US/thunderbird/addon/importexporttools-ng/ )
+
+
+Abstract Advisory Information:
+==============================
+The vulnerability laboratory core research team discovered a persistent validation vulnerability in the official ImportExportTools NG 10.0.4 for mozilla thunderbird.
+
+
+Affected Product(s):
+====================
+Christopher Leidigh
+Product: ImportExportTools NG v10.0.4 - Addon (Mozilla Thunderbird)
+
+
+Vulnerability Disclosure Timeline:
+==================================
+2021-10-07: Researcher Notification & Coordination (Security Researcher)
+2021-10-08: Vendor Notification (Security Department)
+2021-**-**: Vendor Response/Feedback (Security Department)
+2021-**-**: Vendor Fix/Patch (Service Developer Team)
+2021-**-**: Security Acknowledgements (Security Department)
+2021-11-05: Public Disclosure (Vulnerability Laboratory)
+
+
+Discovery Status:
+=================
+Published
+
+
+Exploitation Technique:
+=======================
+Remote
+
+
+Severity Level:
+===============
+Medium
+
+
+Authentication Type:
+====================
+Pre Auth (No Privileges or Session)
+
+
+User Interaction:
+=================
+Low User Interaction
+
+
+Disclosure Type:
+================
+Responsible Disclosure
+
+
+Technical Details & Description:
+================================
+A html inject web vulnerability has been discovered in the official ImportExportTools NG 10.0.4 for mozilla thunderbird.
+The vulnerability allows a remote attacker to inject html payloads to compromise application data or session credentials.
+
+The vulnerability is located in the html export function. Subject content on export is not sanitized like on exports in mozilla itself.
+Thus allows a remote attacker to send malicious emails with malformed a html payloads that executes on preview after a html export by
+the victim user.
+
+Vulnerable Module(s):
+[+] Export (HTML)
+
+
+Proof of Concept (PoC):
+=======================
+The web vulnerability can be exploited by remote attackers without user account and with low or medium user interaction.
+For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.
+
+
+Manual steps to reproduce the vulnerability ...
+1. Install mozilla thunderbird
+2. Install ImportExportTools NG v10.0.4
+3. Use another email to write to the target inbox were the export takes place
+Note: Inject into the subject any html test payload
+4. Target user exports his content of the inbox in html were the payload executes
+5. Successful reproduce of the encode validation vulnerability!
+
+Note: We reported some years ago the same issue that was also present in keepass and kaspersky password manager on exports via html and has been successfully resolved.
+
+
+Vulnerable Source: ImportExportTools Exported HTML File
+
+
+
+Posteingang
+
+
+