CVE-2022-46287Network attack vector

Arbitrary script execution via crafted URL

Published Dec 19, 2022 · Updated Apr 17, 2025

Cross-site scripting in Electronic Bidding Core System v6 R4 and earlier allows remote attackers to execute arbitrary script via a crafted URL. JACIC and JVN identify a specially crafted URL as the delivery vector but do not disclose the affected endpoint, parameter, or missing output-encoding operation. Exploitation requires an unauthenticated remote attacker to induce a user to open the URL, after which script executes in that user's browser context.

CVSS severity6.1
Medium
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Electronic Bidding Core System v6 R4 and earlier allows remote attackers to execute arbitrary script via a crafted URL. JACIC and JVN identify a specially crafted URL as the delivery vector but do not disclose the affected endpoint, parameter, or missing output-encoding operation. Exploitation requires an unauthenticated remote attacker to induce a user to open the URL, after which script executes in that user's browser context.

The record

CVE
CVE-2022-46287
Published
Dec 19, 2022
Updated
Apr 17, 2025
Vendor
Japan Construction Information Center
Product
Electronic Bidding Core System
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 19, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 17, 2025Record 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=v6 R4 and earlier

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Japan Construction Information Center · Electronic Bidding Core Systemversion=v6 R4 and earlier

Published CVSS scores

4.3JPCERT/CC JVNAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1JPCERT/CC JVNCVSS: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')
T1189Drive-by Compromise

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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