CVE-2020-15366
Prototype Pollution in Ajv
5.6
MEDIUM
CVSS 3.1
EPSS 0.33%
Description
An issue was discovered in ajv.validate() in Ajv (aka Another JSON Schema Validator) 6.12.2. A carefully crafted JSON schema could be provided that allows execution of other code by prototype pollution. (While untrusted schemas are recommended against, the worst case of an untrusted schema should be a denial of service, not execution of code.)
How to fix CVE-2020-15366
To remediate CVE-2020-15366, upgrade the affected package to a fixed version below.
- —upgrade to 6.12.4-1 or later
- —upgrade to 6.12.3 or later
Is CVE-2020-15366 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 6.12.4-1
- from 0, < 6.12.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.6 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L |