CVE-2019-11580

Confirmed PUBLISHED

Atlassian Crowd and Crowd Data Center had the pdkinstall development plugin incorrectly enabled in release builds. Attackers who can send...

Atlassian · Crowd

Exploited in the wild Used in malware PoC available

Recommended Action

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

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Confidence

Confirmed

Exploitation Status

Exploited in the wild

Observed in Sensors

Attempts (30d)

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Unique Attacker IPs

—

CISA KEV

In CISA KEV

CVSS / EPSS

9.8 Critical EPSS 95.4%

At a Glance

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.

cisa metasploit nuclei_scanner malware

CVE Published: Jun 03, 2019
Exploitation Reported: Nov 03, 2021
CVSS: 9.8 Critical
EPSS: 95.4%

Remote Low complexity No user interaction Unauthenticated

Affected Versions

Vendor	Product	Version	Status
Atlassian	Crowd	2.1.0 to < unspecified	Affected
Atlassian	Crowd	unspecified to < 3.0.5	Affected
Atlassian	Crowd	3.1.0 to < unspecified	Affected
Atlassian	Crowd	unspecified to < 3.1.6	Affected
Atlassian	Crowd	3.2.0 to < unspecified	Affected
Atlassian	Crowd	unspecified to < 3.2.8	Affected
Atlassian	Crowd	3.3.0 to < unspecified	Affected
Atlassian	Crowd	unspecified to < 3.3.5	Affected
Atlassian	Crowd	3.4.0 to < unspecified	Affected
Atlassian	Crowd	unspecified to < 3.4.4	Affected

CVE References

108637 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/108637
jira.atlassian.com/browse/CWD-5388 jira.atlassian.com · CVE Record https://jira.atlassian.com/browse/CWD-5388
packetstormsecurity.com/files/163810/Atlassian-Crowd-pdkinstall-Remo... packetstormsecurity.com · CVE Record http://packetstormsecurity.com/files/163810/Atlassian-Crowd-pdkinstal...

Recommended Actions

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.

Known Exploited Vulnerability Sources

Catalogues that list this CVE as a known exploited vulnerability.

Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.

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Source	Added
CISA First	2021-11-03 00:00 UTC
The Shadowserver	2026-06-05 00:00 UTC

Scanner Artifacts

Nuclei and Metasploit references linked to this CVE.

Scanner	Reference	Detected
Nuclei	https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-11580.yaml	Apr 25, 2025
Metasploit	https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/atlassian_crowd_pdkinstall_plugin_upload_rce.rb	Apr 28, 2025

CVSS Scores

CVSS v3.1 9.8 Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 7.5 High

AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitation Status

Exploited in the wild

Recorded 2021-11-03 00:00:00 UTC · CISA

Used in malware

Recorded 2026-06-02 14:08:28 UTC · CISA

Proof of concept available

Recorded 2019-07-17 07:54:38 UTC · GitHub

Scanner Integrations

Scanner	Reference	Detected
Metasploit	https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/atlassian_crowd_pdkinstall_plugin_upload_rce.rb	Apr 28, 2025
Nuclei	https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-11580.yaml	Apr 25, 2025

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

shelld3v/CVE-2019-11580

github · Created 2020-03-06 17:09:26 UTC · 6 stars

A CVE-2019-11580 shell

jas502n/CVE-2019-11580

github · Created 2019-07-17 07:54:38 UTC · 106 stars

CVE-2019-11580 Atlassian Crowd and Crowd Data Center RCE

Atlassian Crowd and Crowd Data Center - Unauthenticated Remote Code Execution

nuclei · Created Unknown

atlassian_crowd_pdkinstall_plugin_upload_rce

metasploit · Created Unknown

Metasploit module for CVE-2019-11580

Timeline

Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.

5 Jun 2026 00:00 UTC about 2 months ago

5 Jun 2026 00:00 UTC · about 2 months ago

KEV confirmed by The Shadowserver

Exploitation attested by an external source
2 Jun 2026 14:08 UTC about 2 months ago

2 Jun 2026 14:08 UTC · about 2 months ago

First public exploitation report

Exploit observed in malware
28 Apr 2025 15:02 UTC about 1 year ago

28 Apr 2025 15:02 UTC · about 1 year ago

Metasploit module available

Exploit module available
25 Apr 2025 00:00 UTC about 1 year ago

25 Apr 2025 00:00 UTC · about 1 year ago

Nuclei template available

Scanner coverage available
3 Nov 2021 00:00 UTC over 4 years ago

3 Nov 2021 00:00 UTC · over 4 years ago

Added to CISA KEV

Listed in the CISA Known Exploited Vulnerabilities catalog
17 Jul 2019 07:54 UTC about 7 years ago

17 Jul 2019 07:54 UTC · about 7 years ago

Public PoC available

Public proof-of-concept code published
3 Jun 2019 13:43 UTC about 7 years ago

3 Jun 2019 13:43 UTC · about 7 years ago

CVE published

Vulnerability disclosed publicly
29 Apr 2019 00:00 UTC about 7 years ago

29 Apr 2019 00:00 UTC · about 7 years ago

CVE ID reserved

Identifier reserved by the CNA

Automate This Intelligence with the Pro API

Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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Pro API Example

GET /api/v2/pro/kevs/CVE-2019-11580

{
  "cve_id": "CVE-2019-11580",
  "title": "Atlassian Crowd and Crowd Data Center had the pdkinstall development plugin i...",
  "affected_vendor": "Atlassian",
  "affected_product": "Crowd",
  "affected_versions": [
    { "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
  ],
  "confidence": "Confirmed",
  "cvss_score": 9.8,
  "epss_score": 0.95355,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "...": "Pro API fields" },
  "proof_of_concepts": [ "..." ],
  "scanner_integrations": [ "..." ]
}

The free JSON API returns basic KEV fields only. Confidence, telemetry, and artifact enrichment require Pro API access.

CVE-2019-11580

At a Glance

Affected Versions

CVE References

Recommended Actions

Known Exploited Vulnerability Sources

Scanner Artifacts

Virtual Patch

CVSS Scores

Exploitation Status

Scanner Integrations

Potential Proof of Concepts

Timeline

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