CVE-2020-4949: IBM WebSphere Application Server

High severity, CVSS 8.2. EPSS: 4.8% chance of exploitation in the next 30 days.

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 192025.

Affected products

• IBM WebSphere Application Server: from 7.0.0.0, up to and including 7.0.0.45; from 8.0.0.0, up to and including 8.0.0.15; from 8.5.0.0, up to and including 8.5.5.18; from 9.0.0.0, up to and including 9.0.5.6

Published 2021-01-26. Last modified 2026-06-17.