CVE-2021-30172Network attack vector

Customer-data access via unfiltered picture-preview input

Published May 7, 2021 · Updated Sep 17, 2024

Reflected XSS in Jun Ho Technology Quan-Fang-Wei-Tong-Xun 2007.1901 allows remote authenticated users to run JavaScript in a victim's browser. The picture-preview page returns a user-controlled field without filtering special characters, causing injected script to run in the page context. Exploitation requires a standard account and victim interaction, enabling access to or manipulation of customer information.

CVSS severity4.6
Medium
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Jun Ho Technology Quan-Fang-Wei-Tong-Xun 2007.1901 allows remote authenticated users to run JavaScript in a victim's browser. The picture-preview page returns a user-controlled field without filtering special characters, causing injected script to run in the page context. Exploitation requires a standard account and victim interaction, enabling access to or manipulation of customer information.

The record

CVE
CVE-2021-30172
Published
May 7, 2021
Updated
Sep 17, 2024
Vendor
Jun Ho Technology Co., Ltd.
Product
Quan-Fang-Wei-Tong-Xun 2007
Classifications
CWE-79, T1204
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 7, 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=2007.1901

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jun Ho Technology Co., Ltd. · Quan-Fang-Wei-Tong-Xun 2007version=2007.1901

Published CVSS scores

3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
4.6TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204User Execution

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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