How severe is CVE-2026-39380?

CVE-2026-39380 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-39380 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-39380?

CVE-2026-39380 affects Opensourcepos Open Source Point Of Sale. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-39380?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-39380 have an EU (EUVD) identifier?

Yes. CVE-2026-39380 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19916.

When was CVE-2026-39380 published?

CVE-2026-39380 was published on 2026-04-07 and last updated on 2026-06-17.

CVE-2026-39380

CVE-2026-39380 is a medium-severity vulnerability in Opensourcepos Open Source Point Of Sale with a CVSS 3.x base score of 5.4. 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: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19916
Weakness: CWE-79
Affected product: Opensourcepos Open Source Point Of Sale
Published: 2026-04-07
Last modified: 2026-06-17

Description

Open Source Point of Sale is a web based point-of-sale application written in PHP using CodeIgniter framework. Prior to 3.4.3, a Stored Cross-Site Scripting (XSS) vulnerability exists in the Stock Locations configuration feature. The application fails to properly sanitize user input supplied through the stock_location parameter, allowing attackers to inject malicious JavaScript code that is stored in the database and executed when rendered in the Employees interface. This vulnerability is fixed in 3.4.3.

Frequently asked questions

What is CVE-2026-39380?: Open Source Point of Sale is a web based point-of-sale application written in PHP using CodeIgniter framework. Prior to 3.4.3, a Stored Cross-Site Scripting (XSS) vulnerability exists in the Stock Locations configuration feature. The application fails to properly sanitize user input supplied through the stock_location parameter, allowing attackers to inject malicious JavaScript code that is stored in the database and executed when rendered in the Employees interface. This vulnerability is fixed in 3.4.3.
How severe is CVE-2026-39380?: CVE-2026-39380 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-39380 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-39380?: CVE-2026-39380 affects Opensourcepos Open Source Point Of Sale. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-39380?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-39380 have an EU (EUVD) identifier?: Yes. CVE-2026-39380 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19916.
When was CVE-2026-39380 published?: CVE-2026-39380 was published on 2026-04-07 and last updated on 2026-06-17.

References

https://github.com/opensourcepos/opensourcepos/security/advisories/GHSA-7hg5-68rx-xpmg

Affected products (1)

cpe:2.3:a:opensourcepos:open_source_point_of_sale:*:*:*:*:*:*:*:*

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