CVE-2018-20233 json
The Upload add-on resource in Atlassian Universal Plugin Manager before version 2.22.14 allows remote attackers who have system administrat…
published 2019-01-18 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-12799
- cvss
- 6.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Atlassian Universal Plugin Manager 2.22.14
Exploit prediction
1.82% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H |
| NVD | 2.0 | 5.5 | AV:N/AC:L/Au:S/C:P/I:N/A:P |
Affected products
- Atlassian Universal Plugin Manager
Classification
- Weakness
-
- CWE-611 Improper Restriction of XML External Entity Reference
References
-
ecosystem.atlassian.net
/browse/UPM-5964
issue-tracking, vendor-advisory
-
securityfocus.com
/bid/106661
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-20233
- NVD CVE-2018-20233
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.