CVE-2020-4782

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-10-28 · updated 2026-06-17
Weakness: CWE-22

Description

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system.

Affected products

IBM WebSphere Application Server: from 7.0.0.0 through 7.0.0.45; from 8.0.0.0 through 8.0.0.15; from 8.5.0.0 through 8.5.5.18; from 9.0.0.0 through 9.0.5.5

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/189213
https://www.ibm.com/support/pages/node/6356083
https://exchange.xforce.ibmcloud.com/vulnerabilities/189213
https://www.ibm.com/support/pages/node/6356083

Get alerted when CVE-2020-4782 or the next vulnerability affects your stack