CVE-2017-18083 : Security Advisory and Response
Learn about CVE-2017-18083, a cross-site scripting (XSS) vulnerability in Atlassian Confluence Server allowing remote attackers to inject malicious code. Find out how to mitigate and prevent this security risk.
A cross-site scripting (XSS) vulnerability in Atlassian Confluence Server allows remote attackers to inject arbitrary HTML or JavaScript.
Understanding CVE-2017-18083
What is CVE-2017-18083?
The editinword feature in Atlassian Confluence Server prior to version 6.4.0 is vulnerable to XSS attacks, enabling attackers to manipulate uploaded file content.
The Impact of CVE-2017-18083
This vulnerability can be exploited by remote attackers to inject malicious code, potentially leading to unauthorized access or data theft.
Technical Details of CVE-2017-18083
Vulnerability Description
The editinword resource in Atlassian Confluence Server before version 6.4.0 allows attackers to inject arbitrary HTML or JavaScript via XSS through uploaded file contents.
Affected Systems and Versions
- Product: Confluence
- Vendor: Atlassian
- Versions Affected: Prior to 6.4.0
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating the content of uploaded files to inject malicious HTML or JavaScript.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade Confluence Server to version 6.4.0 or later to mitigate the vulnerability.
- Regularly monitor and review uploaded file contents for suspicious code.
Long-Term Security Practices
- Implement content security policies to prevent XSS attacks.
- Educate users on safe file uploading practices to avoid introducing malicious code.
Patching and Updates
- Stay informed about security updates from Atlassian and apply patches promptly to address known vulnerabilities.