CVE-2023-49771Network attack vector

Reflected script execution via undisclosed input handling

Published Dec 14, 2023 · Updated Apr 28, 2026

Reflected XSS in Smart External Link Click Monitor [Link Log] 5.0.2 and earlier allows remote attackers to run script via crafted requests. The published record does not identify the request parameter, handler, or output operation that reflects untrusted input without neutralization. Exploitation requires a victim to follow a crafted request, allowing script execution in that victim's browser context and access or actions permitted to the session.

CVSS severity7.1
High
EPSS probability0.41%
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 Smart External Link Click Monitor [Link Log] 5.0.2 and earlier allows remote attackers to run script via crafted requests. The published record does not identify the request parameter, handler, or output operation that reflects untrusted input without neutralization. Exploitation requires a victim to follow a crafted request, allowing script execution in that victim's browser context and access or actions permitted to the session.

The record

CVE
CVE-2023-49771
Published
Dec 14, 2023
Updated
Apr 28, 2026
Vendor
Peter Raschendorfer
Product
Smart External Link Click Monitor [Link Log]
Classifications
CWE-79, CAPEC-591, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 14, 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 <=5.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Peter Raschendorfer · Smart External Link Click Monitor [Link Log]version=n/a <=5.0.2

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

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
T1059.007Command and Scripting Interpreter: JavaScript/JScript

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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