CVE-2022-40290Network attack vector

Reflected XSS via crafted barcode link

Published Oct 31, 2022 · Updated May 6, 2025

Reflected XSS in PHP Point Of Sale 19.0 allows remote attackers to run script in a user's browser through a crafted barcode link. The barcode generation functionality reflects attacker-controlled link input into a response without sufficient output neutralization; public sources do not identify the parameter or code path. No authentication is required to create the link, but a user must open it before browser-executed script can read or alter data available to that user's session.

CVSS severity6.1
Medium
EPSS probability0.40%
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 PHP Point Of Sale 19.0 allows remote attackers to run script in a user's browser through a crafted barcode link. The barcode generation functionality reflects attacker-controlled link input into a response without sufficient output neutralization; public sources do not identify the parameter or code path. No authentication is required to create the link, but a user must open it before browser-executed script can read or alter data available to that user's session.

The record

CVE
CVE-2022-40290
Published
Oct 31, 2022
Updated
May 6, 2025
Vendor
PHP Point Of Sale, LLC
Product
PHP Point Of Sale
Classifications
CWE-79, CAPEC-63, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 31, 2022CVE publishedPublication date reported by the CVE source.
  2. May 6, 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

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PHP Point Of Sale, LLC · PHP Point Of Saleversion=0

Published CVSS scores

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

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')
CAPEC-63Cross-Site Scripting (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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