{"cve":"CVE-2021-43852","nvd":{"published":"2022-01-04T20:15:07.730","modified":"2026-06-17T04:11:34.413","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-1321","CWE-74"],"references":["https://github.com/oroinc/platform/commit/62c26936b3adee9c20255dcd9f8ee5c299b464a9","https://github.com/oroinc/platform/security/advisories/GHSA-jx5q-g37m-h5hj","https://github.com/oroinc/platform/commit/62c26936b3adee9c20255dcd9f8ee5c299b464a9","https://github.com/oroinc/platform/security/advisories/GHSA-jx5q-g37m-h5hj"],"products":["oroinc:oroplatform"],"source":"nvd","synced_at":"2026-10-19T21:26:33.761856376+00:00"},"epss":{"cve":"CVE-2021-43852","score":0.0113,"percentile":0.66407,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}