What is CVE-2018-20233?

CVE-2018-20233 is a medium-severity vulnerability in Atlassian Universal Plugin Manager, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2019-01-18.

How severe is CVE-2018-20233?

Medium severity. CVSS v3 base score is 6.5 out of 10.

XXE in Atlassian Universal Plugin Manager

CVE-2018-20233

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.

Vulnerability class: XXE (XML External Entity)

EPSS: 0.018 (76.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H.

Affected products

Atlassian Universal Plugin Manager — versions unspecified
Atlassian Universal_plugin_manager

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

security@atlassian.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
security@atlassian.com (x_refsource_CONFIRM, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2018-20233?: CVE-2018-20233 is a medium-severity vulnerability in Atlassian Universal Plugin Manager, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 6.5/10. Published 2019-01-18.
How severe is CVE-2018-20233?: Medium severity. CVSS v3 base score is 6.5 out of 10.