CVE-2021-43852
Client-Side JavaScript Prototype Pollution in oro/platform
5.3
MEDIUM
CVSS 3.1
EPSS 0.63%
Description
### Summary By sending a specially crafted request, an attacker could inject properties into existing JavaScript language construct prototypes, such as objects. Later this injection may lead to JS code execution by libraries that are vulnerable to Prototype Pollution. ### Workarounds Configure WAF to drop requests containing next strings: `__proto__` , `constructor[prototype]`, `constructor.prototype`
How to fix CVE-2021-43852
To remediate CVE-2021-43852, upgrade the affected package to a fixed version below.
- —upgrade to 4.1.14 or later
Is CVE-2021-43852 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 4.1.0, < 4.1.14
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |