Critical (9.8) in rws worldserver. EPSS 42% chance of exploitation in the next 30 days.
An issue was discovered in RWS WorldServer before 11.7.3. Adding a token parameter with the value of 02 bypasses all authentication requirements. Arbitrary Java code can be uploaded and executed via a .jar archive to the ws-api/v2/customizations/api endpoint.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
42% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)