CVE-2019-8449
The /rest/api/latest/groupuserpicker resource in Jira before version 8.4.0 allows remote attackers to enumerate usernames via an information disclosure vulnerability.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 84.8%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
Description
The /rest/api/latest/groupuserpicker resource in Jira before version 8.4.0 allows remote attackers to enumerate usernames via an information disclosure vulnerability.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 84.77% probability · 100th percentile
- Public exploits
- 1 in Exploit-DB · first 3 February 2020
- CISA KEV
- Not listed
- Weakness
- CWE-306
- Affected
- atlassian/jira
- Source
- security@atlassian.com
EPSS 84.8% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://packetstormsecurity.com/files/156172/Jira-8.3.4-Information-Disclosure.htmlExploit, Third Party Advisory, VDB Entry
- https://jira.atlassian.com/browse/JRASERVER-69796Issue Tracking, Vendor Advisory
- http://packetstormsecurity.com/files/156172/Jira-8.3.4-Information-Disclosure.htmlExploit, Third Party Advisory, VDB Entry
- https://jira.atlassian.com/browse/JRASERVER-69796Issue Tracking, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.