VULNERABILITY INTELLIGENCE

CVE-2018-20233

CVSS score6.5 MEDIUM

EPSS probability1.82%

CISA KEVNot currently listed

Published2019-01-18

Last modified2026-06-17

CVSS vectorCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H

Description

The Upload add-on resource in Atlassian Universal Plugin Manager before version 2.22.14 allows remote attackers who have system administrator privileges to read files, make network requests and perform a denial of service attack via an XML External Entity vulnerability in the parsing of atlassian plugin xml files in an uploaded JAR.

Weakness classification

CWE-611: Improper Restriction of XML External Entity Reference

Primary references

security@atlassian.com — Third Party Advisory, VDB Entry
security@atlassian.com — Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Vendor Advisory