CVE-2018-5223

Severity: high (CVSS 7.2 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-03-29 · updated 2026-06-17
Weakness: CWE-20

Description

Fisheye and Crucible did not correctly check if a configured Mercurial repository URI contained values that the Windows operating system may consider argument parameters. An attacker who has permission to add a repository in Fisheye or Crucible can execute code of their choice on systems that run a vulnerable version of Fisheye or Crucible on the Windows operating system. All versions of Fisheye and Crucible before 4.4.6 (the fixed version for 4.4.x) and from 4.5.0 before 4.5.3 (the fixed version for 4.5.x) are affected by this vulnerability.

Affected products

Atlassian Crucible: from 4.4.0 before 4.4.6; from 4.5.0 before 4.5.3 — fixed in 4.4.6, 4.5.3
Atlassian Fisheye: from 4.4.0 before 4.4.6; from 4.5.0 before 4.5.3 — fixed in 4.4.6, 4.5.3

How to fix

Upgrade to a fixed version: Atlassian Crucible 4.4.6, 4.5.3; Atlassian Fisheye 4.4.6, 4.5.3. Check the vendor advisory for mitigations.

References

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