HOMEVULNERABILITIESCVE-2021-43852
HIGH

CVE-2021-43852

CWE-74Published: January 4, 2022· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2021-43852 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

oroinc1 product(s)
oroplatform
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/oroinc/platform/commit/62c26936b3adee9c20255dcd9f8ee5c299b464a9
PATCHhttps://github.com/oroinc/platform/commit/62c26936b3adee9c20255dcd9f8ee5c299b464a9
ADVISORYhttps://github.com/oroinc/platform/security/advisories/GHSA-jx5q-g37m-h5hj
ADVISORYhttps://github.com/oroinc/platform/security/advisories/GHSA-jx5q-g37m-h5hj

All References (4)

→
https://github.com/oroinc/platform/commit/62c26936b3adee9c20255dcd9f8ee5c299b464a9Patch · Third Party Advisory
→
https://github.com/oroinc/platform/security/advisories/GHSA-jx5q-g37m-h5hjMitigation · Third Party Advisory
→
https://github.com/oroinc/platform/commit/62c26936b3adee9c20255dcd9f8ee5c299b464a9Patch · Third Party Advisory
→
https://github.com/oroinc/platform/security/advisories/GHSA-jx5q-g37m-h5hjMitigation · Third Party Advisory

Quick Facts

CVE IDCVE-2021-43852
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-74
CISA KEVNo
Affected1 vendor(s)
PublishedJan 4, 2022

Related CVEs (CWE-74)

CVE-2026-54159
10.0
CVE-2024-42472
10.0
CVE-2026-25520
10.0
CVE-2026-25586
10.0
CVE-2026-4963
10.0
CVE-2023-32314
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-43852 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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