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TI-2018-14340 Aliases CVE-2018-20233GHSA-5cjw-7jcv-34jx

XML external entity injection in Atlassian Universal Plugin Manager

Priority LOW 32CWE-611Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

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.

Why it matters now

EPSS 0.01818 78th percentileScored 2026-11-07
Fix Fixed Universal Plugin Manager (Atlassian): 2.22.14

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
AtlassianUniversal Plugin Managerbefore 2.22.142.22.14Patch availableCNA
  • Universal Plugin Manager VendorAtlassian Affected before 2.22.14 Fixed in 2.22.14 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:atlassian:universal_plugin_manager:*:*:*:*:*:*:*:*before 2.22.14VulnerableAtlassian
  • cpe:2.3:a:atlassian:universal_plugin_manager:*:*:*:*:*:*:*:* Versions before 2.22.14 Vulnerable ·Atlassian

Remediation

  • Fix · CNA Universal Plugin Manager (Atlassian) Fixed in 2.22.14

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-20233
  2. 2026-10-03 Alias added: GHSA-5cjw-7jcv-34jx

References

Advisory 1

  • TI-2018-03786 Cross-site scripting in Atlassian Universal Plugin Manager CVSS 3.0MEDIUM 5.4
  • TI-2019-11185 Cross-site request forgery in Atlassian Universal Plugin Manager CVSS 3.0MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences