CVE-2023-30497Network attack vector

Unauthenticated reflected cross-site scripting

Published Sep 6, 2023 · Updated Apr 28, 2026

Reflected XSS in Simon Chuang WP LINE Notify 1.4.4 and earlier allows remote attackers to run script via a crafted request. Neither the CNA record nor its sole advisory identifies the affected parameter or the output operation that reflects unsanitized input. Exploitation requires an unauthenticated remote attacker to induce a user to open the crafted request, enabling script execution in that user’s browser context.

CVSS severity7.1
High
EPSS probability0.39%
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 Simon Chuang WP LINE Notify 1.4.4 and earlier allows remote attackers to run script via a crafted request. Neither the CNA record nor its sole advisory identifies the affected parameter or the output operation that reflects unsanitized input. Exploitation requires an unauthenticated remote attacker to induce a user to open the crafted request, enabling script execution in that user’s browser context.

The record

CVE
CVE-2023-30497
Published
Sep 6, 2023
Updated
Apr 28, 2026
Vendor
Simon Chuang
Product
WP LINE Notify
Classifications
CWE-79, CAPEC-591, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record 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=n/a <=1.4.4 changes=[{"at":"1.4.5","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Simon Chuang · WP LINE Notifyversion=n/a <=1.4.4 changes=[{"at":"1.4.5","status":"unaffected"}]

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
6.1NIST NVDCVSS:3.1/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 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')
CAPEC-591Reflected XSS
T1204.001Malicious Link

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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