CVE-2022-4421Network attack vector

Script execution via unescaped Service Desk image URL

Published Dec 12, 2022 · Updated Apr 15, 2025

Cross-site scripting in rAthena FluxCP's Service Desk image URL view allows remote authenticated users to execute script in users' browsers. The view.php template inserts the sslink value directly into both href and img src attributes without HTML escaping. Service Desk access is required to store a crafted image URL, and another user must view the ticket for attacker-controlled script to run in that user's browser.

CVSS severity6.1
Medium
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

Cross-site scripting in rAthena FluxCP's Service Desk image URL view allows remote authenticated users to execute script in users' browsers. The view.php template inserts the sslink value directly into both href and img src attributes without HTML escaping. Service Desk access is required to store a crafted image URL, and another user must view the ticket for attacker-controlled script to run in that user's browser.

The record

CVE
CVE-2022-4421
Published
Dec 12, 2022
Updated
Apr 15, 2025
Vendor
rAthena
Product
FluxCP
Classifications
CWE-707, CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 12, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 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?

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  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

rAthena · FluxCPversion=n/a

Published CVSS scores

3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-707Improper Neutralization
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client 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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