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High severity8.2NVD Advisory· Published Apr 21, 2021· Updated Jun 17, 2026

CVE-2021-20454

CVE-2021-20454

Description

IBM WebSphere Application Server 7.0, 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: 196649.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

4
  • IBM/Websphere Application Serverllm-fuzzy4 versions
    7.0, 8.0, 8.5, and 9.0+ 3 more
    • (no CPE)range: 7.0, 8.0, 8.5, and 9.0
    • (no CPE)range: 7.0
    • cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:-:*:*:*range: >=7.0.0.0,<=7.0.0.45
    • cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*range: >=8.5.0.0,<=8.5.5.19

Patches

Vulnerability mechanics

References

2

News mentions

0

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