XML External Entity Vulnerability in Atlassian Universal Plugin Manager
CVE-2018-20233

6.5MEDIUM

Key Information:

Vendor

Atlassian
Status
Universal Plugin Manager
Vendor
CVE Published:
18 January 2019

What is CVE-2018-20233?

The Upload add-on resource in Atlassian Universal Plugin Manager versions prior to 2.22.14 is susceptible to an XML External Entity (XXE) vulnerability. This flaw enables remote attackers with system administrator privileges to exploit the parsing of uploaded JAR files. Through this vulnerability, attackers may read files on the server, initiate unauthorized network requests, and launch denial of service attacks by manipulating the parsing of Atalassian plugin XML files.

Affected Version(s)

Universal Plugin Manager < 2.22.14

References

http://www.securityfocus.com/bid/106661
vdb-entryx_refsource_BID
https://ecosystem.atlassian.net/browse/UPM-5964
x_refsource_CONFIRM

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.