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CVE-2019-11580

98
FAUCET Score

CVE-2019-11580 is a critical remote code execution (RCE) vulnerability affecting Atlassian Crowd and Crowd Data Center versions 2.1.0 through 3.4.3. The flaw stems from the pdkinstall development plugin being inadvertently enabled in release builds, allowing unauthenticated or authenticated attackers to install arbitrary plugins. This vulnerability carries a CVSS score of 9.8 (Critical) due to its network-based attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. It is actively exploited, listed in the KEV catalog, and has publicly available exploit modules in Metasploit and Nuclei, indicating high community awareness and active threat actor interest.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.1.0, < 3.0.5CPE matchmatch criteria
cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*
>= 3.1.0, < 3.1.6CPE matchmatch criteria
cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*
>= 3.2.0, < 3.2.8CPE matchmatch criteria
cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*
>= 3.3.0, < 3.3.5CPE matchmatch criteria
cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*
>= 3.4.0, < 3.4.4CPE matchmatch criteria
cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
95.36%
Probability of exploitation in next 30 days
EPSS Percentile
99.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Added to KEV · Nov 3, 2021
Metasploit: Atlassian Crowd pdkinstall Unauthenticated Plugin Upload RCE · May 22, 2019
Nuclei: CVE-2019-11580 · Aug 16, 2020
This CVE's current EPSS score of 0.9536 is in the 99th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/163810/Atlassian-Crowd-pdkinstall-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
jira.atlassian.com / browse/CWD-5388
Issue TrackingMitigationVendor Advisory
securityfocus.com / bid/108637
Broken Link