Vulnerability Details : CVE-2021-26081
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.
Products affected by CVE-2021-26081
- cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*
- cpe:2.3:a:atlassian:data_center:*:*:*:*:*:*:*:*
- cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*
- cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*
Threat overview for CVE-2021-26081
Top countries where our scanners detected CVE-2021-26081
Top open port discovered on systems with this issue
80
IPs affected by CVE-2021-26081 3,809
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2021-26081!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2021-26081
0.19%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 57 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-26081
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
3.9
|
1.4
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2024-10-11 |
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
3.9
|
1.4
|
NIST |
References for CVE-2021-26081
-
https://jira.atlassian.com/browse/JRASERVER-72499
[JRASERVER-72499] Username enumeration on Jira Software Server 8.15 - CVE-2021-26081 - Create and track feature requests for Atlassian products.Patch;Vendor Advisory
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