---
id: "CVE-2019-11580"
kind: "vulnerability"
aliases: ["CVE-2019-11580"]
title: "Atlassian Crowd and Crowd Data Center: Atlassian Crowd and Crowd Data Center Remote Code Execution Vulnerability"
severity: "critical"
cvss: 9.8
epss: 0.95355
exploited: true
status: "open"
category: "package"
products: [{"name": "Atlassian Crowd and Crowd Data Center", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["atlassian", "crowd", "exploited", "package", "ransomware", "self-hosted"]
not_affected_if: ["managed-hosting"]
published_at: "2019-06-03T14:29:00+00:00"
first_seen_at: "2026-10-23T19:11:53+00:00"
updated_at: "2026-10-23T21:57:35+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2019-11580", "first_seen_at": "2026-10-23T19:11:53+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2019-11580", "first_seen_at": "2026-10-23T19:13:44+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11580", "first_seen_at": "2026-10-23T21:57:35+00:00"}]
---

# Atlassian Crowd and Crowd Data Center: Atlassian Crowd and Crowd Data Center Remote Code Execution Vulnerability

Atlassian Crowd and Crowd Data Center ship a development plugin (pdkinstall) enabled in release builds. An unauthenticated attacker can use it to execute code on the server.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:Atlassian Crowd and Crowd Data Center affected ? fixed ?

## Fix

Apply the Atlassian vendor update for Crowd and Crowd Data Center per CISA instructions; the fixed version is unknown from the sources.

## Timeline

- 2026-10-23T19:11:53+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2019-11580
- 2026-10-23T19:13:44+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2019-11580
- 2026-10-23T21:57:35+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2019-11580

## From the sources

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.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_