HOMEVULNERABILITIESCVE-2015-5951
CRITICAL

CVE-2015-5951

CWE-434Published: January 6, 2020· Updated: Jun 17, 2026

9.9
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2015-5951 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.9.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeChanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected Vendors & Products

thomsonreuters1 product(s)
fatca
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (10)

http://seclists.org/fulldisclosure/2015/Aug/25Mailing List · Third Party Advisory
http://www.securityfocus.com/bid/76271Third Party Advisory · VDB Entry
https://seclists.org/bugtraq/2015/Aug/32Mailing List · Third Party Advisory
http://seclists.org/fulldisclosure/2015/Aug/25Mailing List · Third Party Advisory
http://www.securityfocus.com/bid/76271Third Party Advisory · VDB Entry
https://seclists.org/bugtraq/2015/Aug/32Mailing List · Third Party Advisory

Quick Facts

CVE IDCVE-2015-5951
CVSS Score9.9 / 10
SeverityCRITICAL
WeaknessCWE-434
CISA KEVNo
Affected1 vendor(s)
PublishedJan 6, 2020

Related CVEs (CWE-434)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2015-5951 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.