01 Record
CVE-2021-20086
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in jquery-bbq 1.2.1 allows a malicious user to inject properties into Object.prototype.
UnratedPUBLISHEDCNA: tenable
CNA base scoreUnratedNo CNA CVSS vector
02 Description
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in jquery-bbq 1.2.1 allows a malicious user to inject properties into Object.prototype.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 6.10% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 93.3% of scored records. A rank, not a probability.
- NVD base score
- 8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-04-23 18:11Z5 YR AGO
- Last updated
- 2025-11-03 21:44Z11 MO AGO
- Reserved
- 2020-12-17
- Assigning CNA
- tenable
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')Variant
- Data version
- 5.2
- Document digest
- b270fc10cb3e81c2471c123e4b3f99237cb17b295d9632299d319040e2ad6289
05 Affected products
VendorProductVersionsPlatforms