Prototype Pollution in Flat Project
CVE-2020-36632
A vulnerability, which was classified as critical, was found in hughsk flat up to 5.0.0. This affects the function unflatten of the file index.js. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). It is possible to initiate the attack remotely. Upgrading to version 5.0.1 is able to address this issue. The name of the patch is 20ef0ef55dfa028caddaedbcb33efbdb04d18e13. It is recommended to upgrade the affected component. The identifier VDB-216777 was assigned to this vulnerability.
Vulnerability class: Prototype Pollution
EPSS: 0.011 (62.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Flat_project Flat
- Hughsk Flat — versions 5.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cna@vuldb.com (technical-description, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, permissions-required, Third Party Advisory)
- cna@vuldb.com (issue-tracking, Third Party Advisory, Issue Tracking)
- cna@vuldb.com (issue-tracking, Patch, Third Party Advisory)
- cna@vuldb.com (Patch, Third Party Advisory, patch)
- cna@vuldb.com (Third Party Advisory, Release Notes, patch)
Frequently asked questions
- What is CVE-2020-36632?
- CVE-2020-36632 is a medium-severity vulnerability in Flat Project, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 6.3/10. Published 2022-12-25.
- How severe is CVE-2020-36632?
- Medium severity. CVSS v3 base score is 6.3 out of 10.
- Is CVE-2020-36632 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.