CVE-2021-36041Network attack vector

Admin remote code execution via crafted file upload

Published Sep 1, 2021 · Updated Sep 17, 2024

Improper input validation in Adobe Commerce allows remote authenticated users to execute code through a crafted file upload. The pub/media upload path accepts a specially crafted file without proper validation, although Adobe has not disclosed the faulty routine. Administrative privileges and network access to the upload workflow are required, and successful exploitation executes code in the Commerce server context.

CVSS severity9.1
Critical
EPSS probability2.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Adobe Commerce allows remote authenticated users to execute code through a crafted file upload. The pub/media upload path accepts a specially crafted file without proper validation, although Adobe has not disclosed the faulty routine. Administrative privileges and network access to the upload workflow are required, and successful exploitation executes code in the Commerce server context.

The record

CVE
CVE-2021-36041
Published
Sep 1, 2021
Updated
Sep 17, 2024
Vendor
Adobe
Product
Adobe Commerce
Classifications
CWE-20, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 1, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <=2.3.7
  2. Affected versionversion=unspecified <=2.4.2
  3. Affected versionversion=unspecified <=2.4.2-p1
  4. Affected versionversion=unspecified <=None

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Adobe · Adobe Commerceversion=unspecified <=2.3.7; version=unspecified <=2.4.2; version=unspecified <=2.4.2-p1; version=unspecified <=None

Published CVSS scores

9.1Adobe Systems IncorporatedCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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