CVE-2021-26078 : Security Advisory and Response
Learn about CVE-2021-26078, a cross-site scripting (XSS) vulnerability impacting Jira Server and Jira Data Center versions. Find out the impact, affected systems, and mitigation steps.
A detailed overview of CVE-2021-26078 highlighting the vulnerability in Jira Server and Jira Data Center versions.
Understanding CVE-2021-26078
This CVE identifies a vulnerability in the number range searcher component in Jira Server and Jira Data Center that allows remote attackers to inject arbitrary HTML or JavaScript via a cross-site scripting (XSS) exploit.
What is CVE-2021-26078?
The vulnerability in Jira Server and Jira Data Center, before version 8.5.14, between versions 8.6.0 and 8.13.6, and before version 8.16.1, enables threat actors to execute XSS attacks by injecting malicious code.
The Impact of CVE-2021-26078
The exploitation of this vulnerability could lead to unauthorized access, data theft, and potential manipulation of sensitive information stored in Jira Server and Jira Data Center.
Technical Details of CVE-2021-26078
Exploring the technical aspects of the CVE and how it affects the systems running the vulnerable Jira versions.
Vulnerability Description
The number range searcher component in Jira Server and Jira Data Center is susceptible to XSS attacks, allowing malicious users to insert harmful scripts into the application.
Affected Systems and Versions
Jira Server versions before 8.5.14, between 8.6.0 and 8.13.6, as well as versions before 8.16.1, and Jira Data Center versions in the same ranges are affected by this security flaw.
Exploitation Mechanism
Remote attackers inject arbitrary HTML or JavaScript through the number range searcher component, exploiting the XSS vulnerability to compromise the integrity of the affected systems.
Mitigation and Prevention
Implementing necessary steps to mitigate the risks associated with CVE-2021-26078 and prevent potential exploits.
Immediate Steps to Take
Update Jira Server and Jira Data Center to versions above 8.5.14, 8.13.6, and 8.16.1 to eliminate the XSS vulnerability and enhance the security of the systems.
Long-Term Security Practices
Regularly monitor for security patches and updates released by Atlassian to safeguard against emerging threats and vulnerabilities.
Patching and Updates
Maintain a proactive approach to security by promptly applying patches and updates provided by Atlassian to fortify the defenses of Jira Server and Jira Data Center against known vulnerabilities.