CVE-2022-40287Network attack vector

Authenticated account compromise via stored profile-field scripts

Published Oct 31, 2022 · Updated May 6, 2025

Stored XSS in PHP Point Of Sale 19.0 messaging allows remote authenticated users to compromise a targeted account via profile data. The messaging view renders attacker-controlled user profile fields without neutralizing active browser content, so stored script executes in another user's session. A low-privileged account must save the payload and a targeted user must view the affected message; execution enables account compromise or privilege escalation.

CVSS severity9.0
Critical
EPSS probability0.66%
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 PHP Point Of Sale 19.0 messaging allows remote authenticated users to compromise a targeted account via profile data. The messaging view renders attacker-controlled user profile fields without neutralizing active browser content, so stored script executes in another user's session. A low-privileged account must save the payload and a targeted user must view the affected message; execution enables account compromise or privilege escalation.

The record

CVE
CVE-2022-40287
Published
Oct 31, 2022
Updated
May 6, 2025
Vendor
PHP Point Of Sale, LLC
Product
PHP Point Of Sale
Classifications
CWE-79, CAPEC-63, T1059.007
Attack vector
network
Privileges
authenticated

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 privilegesauthenticated

What is affected?

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

Published CVSS scores

9.0NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
9.0CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-63Cross-Site Scripting (XSS)
T1059.007Command and Scripting Interpreter: JavaScript

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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