atlassian data-center CVE-2021-26081 vulnerability in Atlassian Products
Published on July 20, 2021

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REST API in Atlassian Jira Server and Jira Data Center before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1 allows remote attackers to enumerate usernames via a Sensitive Data Exposure vulnerability in the `/rest/api/latest/user/avatar/temporary` endpoint.

NVD

Vulnerability Analysis

CVE-2021-26081 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.

Exploitation:
NONE
Automatable:
YES
Technical Impact:
PARTIAL
Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
LOW
Integrity Impact:
NONE
Availability Impact:
NONE

Products Associated with CVE-2021-26081

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Atlassian Data Center
Atlassian Jira

Affected Versions

Atlassian Jira Server: Atlassian Jira Data Center: atlassian jira_server: atlassian jira_data_center:

Exploit Probability

EPSS
1.27%
Percentile
70.22%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.