CVE-2020-28462 json
Prototype Pollution
published 2022-07-25 4 y ago modified 2026-06-17 4 mo ago also GHSA-7vrv-5m2h-rjw9 , EUVD-2022-6287
- cvss
- 7.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 61%
- public exploits
- 0
- none known
Summary
This affects all versions of package ion-parser. If an attacker submits a malicious INI file to an application that parses it with parse , they will pollute the prototype on the application. This can be exploited further depending on the context.
Exploit prediction
0.94% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- security.snyk.io https://security.snyk.io/vuln/SNYK-JS-IONPARSER-1048971 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P |
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | ion-parser | <=0.5.2 |
no fix listed |
Affected products
- n/a ion-parser
Classification
- Weakness
-
- CWE-1321 Improperly Controlled Modification of Object Prototype Attributes
References
-
security.snyk.io
/vuln/SNYK-JS-IONPARSER-1048971
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-28462
advisory
Sources
- CVE List CVE-2020-28462
- GitHub Advisory GHSA-7vrv-5m2h-rjw9
- NVD CVE-2020-28462
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