CVE-2020-4163
mediumpriority · track · 30EPSS 0.016 · 75 %ileEUUSEPSS · scored 2026-10-27
IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0, under specialized conditions, could allow an authenticated user to create a maliciously crafted file name which would be misinterpreted as jsp content and executed. IBM X-Force ID: 174397.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–7.2
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (8)
Products and version ranges known to be affected.
- ibm websphere application server7.0.0.0 → 7.0.0.45nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
- ibm websphere application server8.0.0.0 → 8.0.0.15nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
- ibm websphere application server8.5.0.0 → 8.5.5.16nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
- ibm websphere application server9.0.0.0 → 9.0.5.2nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (21)
External citations — patches, advisories, analysis.
- https://exchange.xforce.ibmcloud.com/vulnerabilities/174397cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-4163cnnvd
- https://vigilance.fr/vulnerability/WebSphere-AS-code-execution-via-File-Name-31503cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.0455/cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.0518/cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.0570/cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.0817/cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.1019/cnnvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan