How severe is CVE-2022-40289?

CVE-2022-40289 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-40289 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-40289?

CVE-2022-40289 affects Phppointofsale Php Point Of Sale. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-40289?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-40289 published?

CVE-2022-40289 was published on 2022-10-31 and last updated on 2026-06-17.

CVE-2022-40289

CVE-2022-40289 is a critical-severity vulnerability in Phppointofsale Php Point Of Sale with a CVSS 3.x base score of 9.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Critical (CVSS 3.x base score 9.0)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Phppointofsale Php Point Of Sale
Published: 2022-10-31
Last modified: 2026-06-17

Description

The application was vulnerable to an authenticated Stored Cross-Site Scripting (XSS) in the upload and download functionality, which could be leveraged to escalate privileges or compromise any accounts they can coerce into observing the targeted files.

Frequently asked questions

What is CVE-2022-40289?: The application was vulnerable to an authenticated Stored Cross-Site Scripting (XSS) in the upload and download functionality, which could be leveraged to escalate privileges or compromise any accounts they can coerce into observing the targeted files.
How severe is CVE-2022-40289?: CVE-2022-40289 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-40289 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-40289?: CVE-2022-40289 affects Phppointofsale Php Point Of Sale. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-40289?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-40289 published?: CVE-2022-40289 was published on 2022-10-31 and last updated on 2026-06-17.

References

https://www.themissinglink.com.au/security-advisories/cve-2022-40289

Affected products (1)

cpe:2.3:a:phppointofsale:php_point_of_sale:19.0:*:*:*:*:*:*:*

More vulnerabilities in Phppointofsale Php Point Of Sale

CVE-2022-40296 — Critical (CVSS 9.8): The application was vulnerable to a Server-Side Request Forgery attacks, allowing the backend server to interact with…
CVE-2022-40293 — Critical (CVSS 9.8): The application was vulnerable to a session fixation that could be used hijack accounts.
CVE-2022-40288 — Critical (CVSS 9.0): The application was vulnerable to an authenticated Stored Cross-Site Scripting (XSS) in the user profile data fields,…
CVE-2022-40287 — Critical (CVSS 9.0): The application was found to be vulnerable to an authenticated Stored Cross-Site Scripting (XSS) vulnerability in…
CVE-2022-40294 — High (CVSS 8.8): The application was identified to have an CSV injection in data export functionality, allowing for malicious code to be…
CVE-2022-40291 — High (CVSS 8.8): The application was vulnerable to Cross-Site Request Forgery (CSRF) attacks, allowing an attacker to coerce users into…

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