{"id":"CVE-2019-11580","published":"2019-06-03T14:29:00Z","modified":"2026-06-17T02:13:11Z","title":"Atlassian Crowd and Crowd Data Center Remote Code Execution Vulnerability","vendor":"Atlassian","product":"Crowd and Crowd Data Center","tier":"core","eol":null,"description":{"text":"Atlassian Crowd and Crowd Data Center had the pdkinstall development plugin incorrectly enabled in release builds. Attackers who can send unauthenticated or authenticated requests to a Crowd or Crowd Data Center instance can exploit this vulnerability to install arbitrary plugins, which permits remote code execution on systems running a vulnerable version of Crowd or Crowd Data Center. All versions of Crowd from version 2.1.0 before 3.0.5 (the fixed version for 3.0.x), from version 3.1.0 before 3.1.6 (the fixed version for 3.1.x), from version 3.2.0 before 3.2.8 (the fixed version for 3.2.x), from version 3.3.0 before 3.3.5 (the fixed version for 3.3.x), and from version 3.4.0 before 3.4.4 (the fixed version for 3.4.x) are affected by this vulnerability.","provenance":"source","from":"NVD"},"summary":{"text":"Atlassian Crowd and Crowd Data Center ship with the pdkinstall development plugin incorrectly enabled in release builds, which is the flaw. An attacker who can send requests to a Crowd or Crowd Data Center instance, with or without authentication, can install arbitrary plugins and so achieve remote code execution on affected systems.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T06:57:22Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.95355,"percentile":0.99867,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","ransomware":true,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2019-11580","provenance":"source"},"vulncheckKev":{"dateAdded":"2020-10-20","exploitedFirstSeen":"2020-10-20","ransomware":true,"evidence":[{"url":"https://cisa.gov/news-events/cybersecurity-advisories/aa20-275a","date":"2020-10-20"},{"url":"https://media.defense.gov/2020/Oct/20/2002519884/-1/-1/0/CSA_CHINESE_EXPLOIT_VULNERABILITIES_UOO179811.PDF","date":"2020-10-20"},{"url":"https://us-cert.cisa.gov/ncas/alerts/aa20-275a","date":"2020-10-20"},{"url":"https://www.cisa.gov/news-events/cybersecurity-advisories/aa21-209a","date":"2021-08-20"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2021-11-03"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-11-26&host_type=src&vulnerability=cve-2019-11580","date":"2023-11-26"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-02&host_type=src&vulnerability=cve-2019-11580","date":"2023-12-02"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-03&host_type=src&vulnerability=cve-2019-11580","date":"2023-12-03"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-05&host_type=src&vulnerability=cve-2019-11580","date":"2023-12-05"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-06&host_type=src&vulnerability=cve-2019-11580","date":"2023-12-06"}],"evidenceTotal":759,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[],"references":[{"url":"http://packetstormsecurity.com/files/163810/Atlassian-Crowd-pdkinstall-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/bid/108637","tags":["Broken Link"]},{"url":"https://jira.atlassian.com/browse/CWD-5388","tags":["Issue Tracking","Mitigation","Vendor Advisory"]},{"url":"http://packetstormsecurity.com/files/163810/Atlassian-Crowd-pdkinstall-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/bid/108637","tags":["Broken Link"]},{"url":"https://jira.atlassian.com/browse/CWD-5388","tags":["Issue Tracking","Mitigation","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-11580","tags":["US Government Resource"]}],"techniques":[{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"source","basis":"ctid-kev","bases":["ctid-kev"],"basisDetail":"CTID Mappings Explorer KEV 07/28/2025 (ATT&CK 16.1); capability: Code Execution","mappingType":"primary_impact","evidence":[],"comment":"CVE-2019-11580 is a critical vulnerability affecting Atlassian Crowd and Crowd Data Center that allows attackers remote code execution to send specially crafted requests to install malicious plugins on vulnerable Crowd instances.","confidence":"medium","confidenceNote":"CTID KEV capability group \"code execution\" is generic"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2019-3250","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-3250","exploited":true,"exploitedSince":"2021-11-03","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":2,"skipped":0,"earliest":"2019-07-17","earliestUrl":"https://github.com/jas502n/CVE-2019-11580","repos":[{"name":"jas502n/CVE-2019-11580","url":"https://github.com/jas502n/CVE-2019-11580","stars":105,"created":"2019-07-17"},{"name":"shelld3v/CVE-2019-11580","url":"https://github.com/shelld3v/CVE-2019-11580","stars":6,"created":"2020-03-06"}]},"metasploit":[{"name":"Atlassian Crowd pdkinstall Unauthenticated Plugin Upload RCE","module":"exploit/multi/http/atlassian_crowd_pdkinstall_plugin_upload_rce","type":"exploit","disclosureDate":"2019-05-22","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/atlassian_crowd_pdkinstall_plugin_upload_rce.rb"}],"nuclei":[{"id":"CVE-2019-11580","name":"Atlassian Crowd and Crowd Data Center - Unauthenticated Remote Code Execution","severity":"critical","path":"http/cves/2019/CVE-2019-11580.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-11580.yaml"}],"first":{"date":"2019-05-22","source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/atlassian_crowd_pdkinstall_plugin_upload_rce.rb"},"provenance":"source"},"exploitRefs":["http://packetstormsecurity.com/files/163810/Atlassian-Crowd-pdkinstall-Remote-Code-Execution.html"],"flow":[{"stage":"primary","techniques":["T1059"],"provenance":"source"}],"timeline":[{"date":"2019-05-22","kind":"exploit-public","label":"First public exploit: Metasploit; later: PoC-in-GitHub 2019-07-17","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/atlassian_crowd_pdkinstall_plugin_upload_rce.rb","provenance":"source"},{"date":"2019-06-03","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-11580","provenance":"source"},{"date":"2020-10-20","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://cisa.gov/news-events/cybersecurity-advisories/aa20-275a","provenance":"source"},{"date":"2021-11-03","kind":"kev","label":"Added to CISA KEV (known ransomware use)","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2021-11-03","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-3250","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":"Metasploit","daysToKev":884},"priority":{"score":79.8,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 2202 days ago"},{"name":"Known ransomware use","points":10.0,"detail":"CISA KEV and VulnCheck KEV: Known"},{"name":"EPSS percentile","points":19.97,"detail":"percentile 0.9987"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 NVD reference tagged Exploit; 2 PoC-in-GitHub repos; 1 Metasploit module; 1 nuclei template"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}