High severity8.2NVD Advisory· Published Apr 20, 2021· Updated Jun 17, 2026
CVE-2021-20453
CVE-2021-20453
Description
IBM WebSphere Application Server 8.0, 8.5, and 9.0 is vulnerable to a 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: 196648.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
38.0, 8.5, and 9.0+ 2 more
- (no CPE)range: 8.0, 8.5, and 9.0
- cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*range: >=8.0.0.0,<8.0.0.15
- (no CPE)range: 8.0
Patches
Vulnerability mechanics
References
2- www.ibm.com/support/pages/node/6445171nvdPatchVendor Advisory
- exchange.xforce.ibmcloud.com/vulnerabilities/196648nvdVDB EntryVendor Advisory
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