Bamboo 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 create a repository in Bamboo, edit an existing plan in Bamboo that has a non-linked Mercurial repository, or create a plan in Bamboo either globally or in a project using Bamboo Specs can can execute code of their choice on systems that run a vulnerable version of Bamboo on the Windows operating system. All versions of Bamboo starting with 2.7.0 before 6.3.3 (the fixed version for 6.3.x) and from version 6.4.0 before 6.4.1 (the fixed version for 6.4.x) running on the Windows operating system are affected by this vulnerability.
Conclusion & alert: CVE-2018-5224 is rated High Risk (66.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.82%). Core evidence: EPSS rose +1.89% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.93% | 2.82% | +1.89% |
| 2 | 2025-10-13 | 0.98% | 0.93% | -0.05% |
| 3 | 2025-09-13 | — | 0.98% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.0 | HIGH |
|
2.8 | 5.9 | [email protected] |
| 9.0 | 2.0 | HIGH |
|
8.0 | 10.0 | [email protected] |
| URL | Tags |
|---|---|
| http://www.securityfocus.com/bid/103653 | Third Party Advisory VDB Entry |
| https://confluence.atlassian.com/x/PS9sO | Mitigation Vendor Advisory |
| https://jira.atlassian.com/browse/BAM-19743 | Vendor Advisory |