CVE-2019-11580

Atlassian Crowd and Crowd Data Center had the pdkinstall development plugin incorrectly enabled...

9.8 CriticalIn KEVPublic exploit

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

95.4%Up 89.5 points since Apr 14, 2021

What each source reports

NVD Score used 9.8

Record: CVE-2019-11580
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated: 2026-11-02

CVE List 9.8

Record: CVE-2019-11580
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

EUVDEUVD-2019-3250 9.8

Record: EUVD-2019-3250
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-8977-4jwc-24g8 9.8

Atlassian Crowd and Crowd Data Center had the pdkinstall development plugin incorrectly enabled...

Record: GHSA-8977-4jwc-24g8
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

CISA KEV No score

Atlassian Crowd and Crowd Data Center Remote Code Execution Vulnerability

Atlassian Crowd and Crowd Data Center contain a remote code execution vulnerability resulting from a pdkinstall development plugin being incorrectly enabled in release builds.

Record: CVE-2019-11580
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Metasploit	Atlassian Crowd pdkinstall Unauthenticated Plugin Upload RCE	2019-05-22
PoC in GitHub	jas502n/CVE-2019-11580	2019-07-17
PoC in GitHub	shelld3v/CVE-2019-11580	2020-03-06
Nuclei	Atlassian Crowd and Crowd Data Center - Unauthenticated Remote Code Execution

History

History
Recorded	Changed	Sources
Nov 3, 2026	exploitation, exploits
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, CISA KEV, Metasploit, Nuclei, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-11580 is a critical vulnerability (CVSS 9.8) in Atlassian Crowd, published June 3, 2019. CISA lists it as known to be exploited, since November 3, 2021. EUVD reports exploitation since November 3, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 95.4%, the 99th percentile. No source names a fixed version.