XML external entity (XXE) vulnerability in IBM Connections 3.0.1.1 and earlier, 4.0, 4.5, and 5.0 before CR4 allows remote authenticated users to cause a denial of service (memory consumption) via crafted XML data. IBM X-Force ID: 108357.
Severity
CVSS 3.0
6.5 medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)