FeHelper through 2019-06-19 allows arbitrary code execution during a JSON format…
Priority MEDIUM 47CWE-74Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
FeHelper through 2019-06-19 allows arbitrary code execution during a JSON format operation, as demonstrated by the {"a":(function(){confirm(1)})()} input.
Why it matters now
EPSS 0.02401 84th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:fehelper_project:fehelper:*:*:*:*:*:*:*:* | up to 2019-06-19 | Vulnerable | Fehelper Project |
- cpe:2.3:a:fehelper_project:fehelper:*:*:*:*:*:*:*:* Versions up to 2019-06-19 Vulnerable ·Fehelper Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-12966
- 2026-10-03 Alias added: GHSA-jpr5-9g6v-vc48
References
Sources
- CVE-2019-12966 · CVE Program
- CVE-2019-12966 · NVD
- FIRST EPSS
- GHSA-jpr5-9g6v-vc48 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences