Vulnerability · Published Apr 23, 2021 · Assigned by tenable
CVE-2021-20088
High 8.8
In plain English
A high-severity security flaw in mootools-more. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities).
Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.4%top 26.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') in mootools-more 1.6.0 allows a malicious user to inject properties into Object.prototype.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | mootools-more | no fix listed | GHSA-fw45-938v-p26j |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | mootools-more | 1.6.0 |