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medium·Product Based Web Vulnerabilities·Updated Dec 16, 2023

CVE-2019-8449 Scanner

CVE-2019-8449 scanner - User Enumeration vulnerability in Atlassian Jira

Est. Time~15 seconds
Scan TypeSingle Scan
Targetsurl
CostFree
2.9k
Times Used
continuous scan runs
4.7k
Continuously Checked
assets under CS
0
Vulnerabilities Found
confirmed findings
References
CVECVE-2019-8449
5.3
CVSS

The /rest/api/latest/groupuserpicker resource in Jira before version 8.4.0 allows remote attackers to enumerate usernames via an information disclosure vulnerability.

Attack Vector
-
Privileges Req.
-
User Interaction
-
Affected
Jiraby Atlassian
AFFECTED< 8.4.0SAFE ✓≥ 8.4.0
Updated Aug 21, 2026View on NVD →
Detail

Atlassian Jira is a popular project and issue tracking software used by teams across various industries to plan, track, and manage their work. It serves as a centralized hub for collaboration and productivity, allowing team members to stay updated on project progress, priorities, and deadlines. Whether it's software development, marketing campaigns, or HR processes, Jira provides customizable workflows, agile boards, and reports to help teams deliver high-quality results on time.

However, Jira's security was recently compromised with the detection of the CVE-2019-8449 vulnerability. This vulnerability can be found in the /rest/api/latest/groupuserpicker resource in Jira prior to version 8.4.0, allowing remote attackers to gain access to sensitive information. Specifically, the vulnerability enables attackers to enumerate usernames, thus making it easier to launch more targeted attacks.

The exploitation of the CVE-2019-8449 vulnerability can lead to serious consequences. Cybercriminals can use the information gathered to launch phishing attacks, social engineering attacks, and other forms of cyberattacks that can lead to data breaches, financial losses, and reputational damage. Since usernames are often used as a means of authentication, the exposure of this information can put user accounts and the entire infrastructure at risk.

Thanks to the pro features of the s4e.io platform, you can easily and quickly learn about vulnerabilities in your digital assets. By subscribing, you will gain access to a wide range of proactive security measures, including threat intelligence, security alerts, and expert guidance. With s4e.io, you can secure your digital assets and protect your organization from cybersecurity threats.

 

REFERENCES

Solution Advice

To protect against this vulnerability, we recommend taking the following precautions:

  • Upgrade to the latest version of Jira.
  • Block untrusted sources from accessing the /rest/api/latest/groupuserpicker resource.
  • Apply access controls to limit the number of users who can access sensitive information.
  • Enable two-factor authentication to reduce the risk of unauthorized access.
  • Conduct regular security assessments and vulnerability scans to identify and mitigate potential risks.

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CVE-2019-8449 scanner - User Enumeration vulnerability in Atlassian Jira | S4E