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CVE

CVE-2021-20353

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to an XML External Entity Injection (XXE) attack w

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: 194882.

HIGH · CVSS 8.2 EPSS 0.01482
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-611Improper Restriction of XML External Entity Reference
▤

Affected Products & Versions

4
ibm websphere application server>= 7.0.0.0 and < 7.0.0.45
ibm websphere application server>= 8.0.0.0 and < 8.0.0.15
ibm websphere application server>= 8.5.0.0 and < 8.5.5.20
ibm websphere application server>= 9.0.0.0 and < 9.0.5.7
▣

Scoring & Timeline

8.2
HIGH · CVSS v3.1 · psirt@us.ibm.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Feb 2021 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://exchange.xforce.ibmcloud.com/vulnerabilities/194882VDB EntryVendor Advisory
https://www.ibm.com/support/pages/node/6413709PatchVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-174/Third Party AdvisoryVDB Entry
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