Cross-Site Scripting (XSS) in Stock Locations configuration feature (CVE-2026-39380)
Summary
Cross-site scripting in Stock Locations configuration feature (CVE-2026-39380). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 3.4.3 or later.
Original description
The description as published by the source.
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.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-39380 has been found in Stock Locations configuration feature.
Risk of unauthorized operations or information disclosure. CVSS score: 5.4/10.
What to do: upgrade Stock Locations configuration feature to 3.4.3 or later.
If unsure, ask your IT team or search "Stock Locations configuration feature CVE-2026-39380" on the vendor's site.
CVE-2026-39380 (Stock Locations configuration feature) — CWE-79 / CVSS v3 5.4
Attack vector: remote (network-reachable)
Patched: 3.4.3 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Cross-site scripting (XSS) (CWE-79) exists in Stock Locations configuration feature.
Check the vendor advisory for the affected versions of Stock Locations configuration feature.
Severity: Medium (CVSS 5.4/10). Risk of unauthorized operations or information disclosure.
Update to 3.4.3.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Stock Locations configuration feature を使っているサービスとバージョンを洗い出す。
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2Apply patch patch
Upgrade Stock Locations configuration feature to 3.4.3ステージング環境で 3.4.3 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
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3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- exploit github.com