CVE-2022-4042Public exploitNetwork attack vector

Stored script execution via unescaped API keys

Published Dec 26, 2022 · Updated Apr 11, 2025

Stored XSS in Paytium before 4.3.7 allows remote authenticated users with administrator access to execute script in a user's browser. The Live API Key and Test API Key settings accept unsanitized markup and are rendered without output escaping by the Setup Wizard. An administrator must save the payload, and another user must open the Setup Wizard; execution is limited to that user's browser context.

CVSS severity4.8
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Paytium before 4.3.7 allows remote authenticated users with administrator access to execute script in a user's browser. The Live API Key and Test API Key settings accept unsanitized markup and are rendered without output escaping by the Setup Wizard. An administrator must save the payload, and another user must open the Setup Wizard; execution is limited to that user's browser context.

The record

CVE
CVE-2022-4042
Published
Dec 26, 2022
Updated
Apr 11, 2025
Vendor
Paytium
Product
Paytium
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 26, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 11, 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=0 <4.3.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Paytium · Paytiumversion=0 <4.3.7

Published CVSS scores

4.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

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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