CVE-2020-14175 : What You Need to Know
Learn about CVE-2020-14175 affecting Atlassian Confluence Server versions before 7.4.2 and from 7.5.0 before 7.5.2, allowing remote attackers to execute XSS attacks. Find mitigation steps here.
Atlassian Confluence Server and Data Center versions before 7.4.2 and from 7.5.0 before 7.5.2 are vulnerable to Stored Cross-Site Scripting (SXSS) attacks through user macro parameters.
Understanding CVE-2020-14175
This CVE involves a Cross-Site Scripting (XSS) vulnerability in Atlassian Confluence Server and Data Center.
What is CVE-2020-14175?
CVE-2020-14175 refers to the ability of remote attackers to inject arbitrary HTML or JavaScript via a Cross-Site Scripting vulnerability in user macro parameters in affected versions of Atlassian Confluence Server and Data Center.
The Impact of CVE-2020-14175
The vulnerability allows attackers to execute malicious scripts in the context of a user's session, potentially leading to unauthorized actions or data theft.
Technical Details of CVE-2020-14175
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The vulnerability in Atlassian Confluence Server and Data Center versions before 7.4.2 and from 7.5.0 before 7.5.2 enables attackers to perform Stored Cross-Site Scripting (SXSS) attacks.
Affected Systems and Versions
- Product: Confluence Server
- Vendor: Atlassian
- Affected Versions:
- Versions before 7.4.2
- Versions from 7.5.0 before 7.5.2
Exploitation Mechanism
Attackers exploit this vulnerability by injecting malicious HTML or JavaScript code through user macro parameters, allowing them to execute unauthorized scripts.
Mitigation and Prevention
Protecting systems from CVE-2020-14175 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Atlassian Confluence Server to version 7.4.2 or higher.
- Implement input validation to sanitize user inputs and prevent XSS attacks.
Long-Term Security Practices
- Regularly monitor and audit user-generated content for malicious scripts.
- Educate users on safe coding practices and the risks of XSS vulnerabilities.
Patching and Updates
- Apply security patches provided by Atlassian promptly to address the vulnerability and enhance system security.