What is CVE-2022-40287?

CVE-2022-40287 is a critical-severity vulnerability in Phppointofsale PHP Point Of Sale, classified under Cross-site Scripting. CVSS score: 9.0/10. Published 2022-10-31.

How severe is CVE-2022-40287?

Critical severity. CVSS v3 base score is 9.0 out of 10.

XSS in Phppointofsale PHP Point Of Sale

CVE-2022-40287

The application was found to be vulnerable to an authenticated Stored Cross-Site Scripting (XSS) vulnerability in messaging functionality, leading to privilege escalation or a compromise of a targeted account.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-10-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (49.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Phppointofsale PHP Point Of Sale — versions 19.0
PHP Point Of Sale Llc — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.themissinglink.com.au/security-advisories/cve-2022-40287 (Third Party Advisory)

Frequently asked questions

What is CVE-2022-40287?: CVE-2022-40287 is a critical-severity vulnerability in Phppointofsale PHP Point Of Sale, classified under Cross-site Scripting. CVSS score: 9.0/10. Published 2022-10-31.
How severe is CVE-2022-40287?: Critical severity. CVSS v3 base score is 9.0 out of 10.