CVE-2021-43852 - CVE House

Back to Database

Status published High CVE-2021-43852

JavaScript Prototype Pollution in oro/platform

8.8 CVSS

Vulnerability Description

OroPlatform is a PHP Business Application Platform. In affected versions 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. This issue has been patched in version 4.2.8. Users unable to upgrade may configure a firewall to drop requests containing next strings: `__proto__` , `constructor[prototype]`, and `constructor.prototype` to mitigate this issue.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-43852

Check My Exposure

Credits & Attribution

No credits recorded in the NVD database.

References

More from oroinc

View All →

OroPlatform's storefront user can access history and most viewed data from matching back-office user with the same ID

OroPlatform's pinned entity creation form shows pages of other users

OroCommerce get-totals-for-checkout API endpoint returns unwanted data

OroCommerce Customer Portal Incorrect Customer and Customer Group Frontend Menus pages visibility

OroCRMCallBundle has incorrect call view page visibility

Affected Vendor

oroinc

View all reports →

Affected Software

platform

Vulnerable Versions:

< 4.2.8

Timeline

Official Publish: January 4th, 2022

Last Modified: April 23rd, 2025

Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:H

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1059 Command and Scripting Interpreter

T1562 Impair Defenses

Defense Evasion

T1213 Data from Information Repositories