CVE-2018-1797: IBM WebSphere Application Server

Medium severity, CVSS 5.5. EPSS: 2% chance of exploitation in the next 30 days.

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 using Enterprise bundle Archives (EBA) could allow a local attacker to traverse directories on the system. By persuading a victim to extract a specially-crafted ZIP archive containing "dot dot slash" sequences (../), an attacker could exploit this vulnerability to write to arbitrary files on the system. Note: This vulnerability is known as "Zip-Slip". IBM X-Force ID: 149427.

Affected products

• IBM WebSphere Application Server: from 7.0.0.0, up to and including 7.0.0.45; from 8.0.0.0, up to and including 8.0.0.15; from 8.5.0.0, up to and including 8.5.5.14; from 9.0.0.0, up to and including 9.0.0.9

Published 2018-11-16. Last modified 2026-06-17.