CVE-2021-21030Network attack vector

Stored JavaScript execution via customer address uploads

Published Feb 11, 2021 · Updated Sep 16, 2024

Stored XSS in Adobe Commerce 2.4.1 and earlier allows remote attackers to execute JavaScript through customer address uploads. Adobe identifies the customer address upload feature but has not disclosed which field or code path stores and renders the payload without effective neutralization. The upload is pre-authentication, but exploitation requires a victim to interact with stored content; execution is confined to the victim's browser.

CVSS severity8.1
High
EPSS probability5.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Adobe Commerce 2.4.1 and earlier allows remote attackers to execute JavaScript through customer address uploads. Adobe identifies the customer address upload feature but has not disclosed which field or code path stores and renders the payload without effective neutralization. The upload is pre-authentication, but exploitation requires a victim to interact with stored content; execution is confined to the victim's browser.

The record

CVE
CVE-2021-21030
Published
Feb 11, 2021
Updated
Sep 16, 2024
Vendor
Adobe
Product
Adobe Commerce
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 11, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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 <=2.3.6
  2. Affected versionversion=unspecified <=2.4.0-p1
  3. Affected versionversion=unspecified <=2.4.1
  4. Affected versionversion=unspecified <=None

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Adobe · Adobe Commerceversion=unspecified <=2.3.6; version=unspecified <=2.4.0-p1; version=unspecified <=2.4.1; version=unspecified <=None

Published CVSS scores

4.3NISTAV:N/AC:M/Au:N/C:N/I:P/A:N
8.1Adobe Systems IncorporatedCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

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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