A file upload issue exists in the specid parameter in Thomson Reuters FATCH before 5.2, which allows malicious users to upload arbitrary PHP files to the web root and execute system commands.
Conclusion & alert: CVE-2015-5951 is rated High Risk (68.9/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.73%). 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 | 2.92% | 2.73% | -0.18% |
| 2 | 2026-04-12 | 3.07% | 2.92% | -0.15% |
| 3 | 2025-03-30 | — | 3.07% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.9 | 3.1 | CRITICAL |
|
3.1 | 6.0 | [email protected] |
| 9.0 | 2.0 | HIGH |
|
8.0 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| thomsonreuters | fatca | < 5.2 | cpe:2.3:a:thomsonreuters:fatca:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://packetstormsecurity.com/files/133003/Thomson-Reuters-FATCA-Arbitrary-File-Upload.html | Third Party Advisory VDB Entry |
| http://seclists.org/fulldisclosure/2015/Aug/25 | Mailing List Third Party Advisory |
| http://www.securityfocus.com/archive/1/536163/100/0/threaded | Third Party Advisory VDB Entry |
| http://www.securityfocus.com/bid/76271 | Third Party Advisory VDB Entry |
| https://seclists.org/bugtraq/2015/Aug/32 | Mailing List Third Party Advisory |