CVE-2021-43957: Atlassian Crucible

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

Affected versions of Atlassian Fisheye & Crucible allowed remote attackers to browse local files via an Insecure Direct Object References (IDOR) vulnerability in the WEB-INF directory and bypass the fix for CVE-2020-29446 due to a lack of url decoding. The affected versions are before version 4.8.9.

Affected products

• Atlassian Crucible: before 4.8.9 (fixed in 4.8.9)
• Atlassian Fisheye: before 4.8.9 (fixed in 4.8.9)

Published 2022-03-16. Last modified 2026-06-17.