CVE-2019-12966

CRITICAL

FeHelper < 2019-06-19 - Remote Code Execution via JSON Format Operation

Title source: llm
STIX 2.1

Description

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

References (1)

Core 1
Core References
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/zxlie/FeHelper/issues/63

Scores

CVSS v3 9.8
EPSS 0.0240
EPSS Percentile 81.9%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-74
Status published
Products (1)
fehelper_project/fehelper < 2019-06-19
Published Jun 26, 2019
Tracked Since Feb 18, 2026