1. Home
  2. CVE Database
  3. CVE-2019-12966
CRITICAL · 9.8

CVE-2019-12966

FeHelper through 2019-06-19 allows arbitrary code execution during a JSON format operation, as demonstrated by the {"a":(function(){confirm(1)})()} input.

Vulnerability Description

FeHelper through 2019-06-19 allows arbitrary code execution during a JSON format operation, as demonstrated by the {"a":(function(){confirm(1)})()} input.

CVSS Score

9.8

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
Fehelper ProjectFehelper<= 2019-06-19

Related Weaknesses (CWE)

CWE-74

References

FAQ

What is CVE-2019-12966?

CVE-2019-12966 is a vulnerability with a CVSS score of 9.8 (CRITICAL). FeHelper through 2019-06-19 allows arbitrary code execution during a JSON format operation, as demonstrated by the {"a":(function(){confirm(1)})()} input.

How severe is CVE-2019-12966?

CVE-2019-12966 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2019-12966?

Check the references section above for vendor advisories and patch information. Affected products include: Fehelper Project Fehelper.