{"id":"CVE-2019-8449","published":"2019-09-11T13:56:26Z","modified":"2024-09-17T01:01:03Z","title":"The /rest/api/latest/groupuserpicker resource in Jira before version 8.4.0 allows remote attackers to enumerate…","vendor":"Atlassian","product":"Jira","tier":"core","eol":null,"affectedVersions":[{"vendor":"Atlassian","product":"Jira","versions":[">= unspecified, < 8.4.0"]}],"description":{"text":"The /rest/api/latest/groupuserpicker resource in Jira before version 8.4.0 allows remote attackers to enumerate usernames via an information disclosure vulnerability.","provenance":"source","from":"CVE.org"},"summary":{"text":"The flaw is an information disclosure vulnerability in the /rest/api/latest/groupuserpicker resource of Atlassian's Jira, affecting versions before 8.4.0. An attacker with network access to the affected Jira instance can enumerate usernames through this resource.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T07:18:45Z"},"cvss":null,"epss":{"score":0.84771,"percentile":0.99706,"date":"2026-10-28","provenance":"source"},"kev":null,"vulncheckKev":null,"exploited":false,"otx":{"pulseCount":0,"pulses":[],"provenance":"machine"},"cwes":[],"references":[{"url":"https://jira.atlassian.com/browse/JRASERVER-69796","tags":["x_refsource_CONFIRM"]},{"url":"http://packetstormsecurity.com/files/156172/Jira-8.3.4-Information-Disclosure.html","tags":["x_refsource_MISC"]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2019-17839","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-17839","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[{"id":47990,"url":"https://www.exploit-db.com/exploits/47990","title":"Jira 8.3.4 - Information Disclosure (Username Enumeration)","type":"webapps","platform":"java","date":"2020-02-03","verified":false,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":1,"earliest":"2020-02-03"},"pocGithub":{"count":2,"skipped":0,"earliest":"2020-02-02","earliestUrl":"https://github.com/mufeedvh/CVE-2019-8449","repos":[{"name":"mufeedvh/CVE-2019-8449","url":"https://github.com/mufeedvh/CVE-2019-8449","stars":68,"created":"2020-02-02"},{"name":"r0lh/CVE-2019-8449","url":"https://github.com/r0lh/CVE-2019-8449","stars":2,"created":"2020-02-14"}]},"nuclei":[{"id":"CVE-2019-8449","name":"Jira <8.4.0 - Information Disclosure","severity":"medium","path":"http/cves/2019/CVE-2019-8449.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-8449.yaml"}],"first":{"date":"2020-02-02","source":"PoC-in-GitHub","url":"https://github.com/mufeedvh/CVE-2019-8449"},"provenance":"source"},"exploitRefs":["http://packetstormsecurity.com/files/156172/Jira-8.3.4-Information-Disclosure.html"],"flow":[],"timeline":[{"date":"2019-09-11","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2019-8449","provenance":"source"},{"date":"2020-02-02","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub; later: Exploit-DB 2020-02-03","url":"https://github.com/mufeedvh/CVE-2019-8449","provenance":"source"}],"speed":{"daysToPublicExploit":144,"firstExploitFrom":"PoC-in-GitHub","daysToKev":null},"priority":{"score":24.9,"factors":[{"name":"In a KEV catalog","points":0.0,"detail":"not listed"},{"name":"Recent KEV listing","points":0.0,"detail":"not listed"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.94,"detail":"percentile 0.9971"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 Exploit-DB entry; 1 NVD exploit link; 2 PoC-in-GitHub repos; 1 nuclei template"},{"name":"Mentioned in OTX pulses","points":0.0,"detail":"0 pulses"},{"name":"CVSS severity","points":0.0,"detail":"no CVSS"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}