CVE-2021-20828Network attack vector

Administrator-browser script execution via crafted storefront input

Published Sep 17, 2021 · Updated Aug 3, 2024

Stored XSS in ActiveFusions Order Status Batch Change Plug-in all versions lets remote attackers run script in an administrator's browser. A crafted script entered into an undisclosed EC storefront field is later rendered without effective neutralization during a specific administrator management-page operation. Exploitation requires that administrator interaction and can expose or alter data accessible to the browser session; no service interruption is reported.

CVSS severity6.1
Medium
EPSS probability0.77%
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 ActiveFusions Order Status Batch Change Plug-in all versions lets remote attackers run script in an administrator's browser. A crafted script entered into an undisclosed EC storefront field is later rendered without effective neutralization during a specific administrator management-page operation. Exploitation requires that administrator interaction and can expose or alter data accessible to the browser session; no service interruption is reported.

The record

CVE
CVE-2021-20828
Published
Sep 17, 2021
Updated
Aug 3, 2024
Vendor
ActiveFusions Co., Ltd.
Product
Order Status Batch Change Plug-in (for EC-CUBE 3.0 series)
Classifications
CWE-79, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 17, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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=all versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ActiveFusions Co., Ltd. · Order Status Batch Change Plug-in (for EC-CUBE 3.0 series)version=all versions

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3JPCERT/CCAV:N/AC:M/Au:N/C:N/I:P/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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