CVE-2019-20104
HIGH
7.5
CVSS Score
Published: February 6, 2020 at 03:10 AM UTC
Updated: June 17, 2026 at 02:29 AM UTC
1 product affected across 1 vendorCrowd
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Severity
HIGH7.5
Exploit prediction
EPSS 2%
Description
The OpenID client application in Atlassian Crowd before version 3.6.2, and from version 3.7.0 before 3.7.1 allows remote attackers to perform a Denial of Service attack via an XML Entity Expansion vulnerability.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Crowd· Atlassianatlassian-app
95%v ≥ 3.7.0v < 3.2.11v < 3.6.2v < 3.7.13.3.0 ≤ v < 3.3.83.4.0 ≤ v < 3.4.73.5.0 ≤ v < 3.5.23.6.0 ≤ v < 3.6.23.6.3 ≤ v < 3.7.13.7.2 ≤ v < 4.0.03.7.0
Affected range stops below 3.2.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.3.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.4.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.5.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.6.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.7.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.0.0, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCExploitTechnical Description
Source: [email protected]
https://zeroauth.ltd/blog/2020/02/07/cve-2019-20104-atlassian-crowd-openid-client-vulnerable-to-remote-dos-via-xml-entity-expansion/CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-776
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