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CVE-2021-43852· NVD / CVE Program· CNA GitHub_M

JavaScript Prototype Pollution in oro/platform

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.

HighCVSS 8.8 · v3.1—No exploit Fix available
Published
Jan 4, 2022
Updated
Jun 17, 2026
EPSS
1.1% · 64th percentile
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Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
8.8
CNA · GitHub_M
8.8
agree

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Affected systems

VendorProduct
oroincoroplatform

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • oroinc oroplatform4.1.0 and later · before 4.1.14
  • oroinc oroplatform4.2.0 and later · before 4.2.8

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • oroinc platform

    • < 4.2.8affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Packagistoro/platformfrom 4.1.0 · before 4.1.144.1.14
Packagistoro/platformfrom 4.2.0 · before 4.2.84.2.8

Other highest-scoring records for the same primary product.

  • CVE-2022-41951OroPlatform vulnerable to path traversal during temporary file manipulations
    39Monitor
  • CVE-2024-50677A cross-site scripting (XSS) vulnerability in OroPlatform CMS v5.1 allows attackers to execute arbitrary web scripts or HTML via a crafted p
    24Monitor
  • CVE-2021-41236XSS vulnerability in oro/platform
    19Monitor
  • CVE-2023-48296OroPlatform's storefront user can access history and most viewed data from matching back-office user with the same ID
    17Monitor
  • CVE-2023-45824OroPlatform's pinned entity creation form shows pages of other users
    17Monitor
  • CVE-2023-32062OroCalendarBundle has incorrect system calendar events visibility
    17Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
oroinc platform4.2.8 · descriptionVendor (CNA)
Packagist:oro/platform4.1.14Package registry (OSV)
Packagist:oro/platform4.2.8Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

CVSS vector

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

nvd-primary

Change log

  1. Fix✗ → ✓

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References

All records