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TI-2026-21383 Aliases CVE-2026-26746GHSA-8p85-wjp4-3w4m

OpenSourcePOS 3.4.1 contains a Local File Inclusion (LFI) vulnerability in the…

Priority MEDIUM 41CWE-434Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-434.

Summary

OpenSourcePOS 3.4.1 contains a Local File Inclusion (LFI) vulnerability in the Sales.php::getInvoice() function. An attacker can read arbitrary files on the web server by manipulating the Invoice Type configuration. This issue can be chained with the file upload functionality to achieve Remote Code Execution (RCE).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00662 51st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:opensourcepos:open_source_point_of_sale:3.4.1:*:*:*:*:*:*:*3.4.1Vulnerableopensourcepos
  • cpe:2.3:a:opensourcepos:open_source_point_of_sale:3.4.1:*:*:*:*:*:*:* Versions 3.4.1 Vulnerable ·opensourcepos

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-26746
  2. 2026-10-03 Alias added: GHSA-8p85-wjp4-3w4m

References

  • TI-2026-25347 Open Source Point of Sale is Vulnerable to SQL Injection Through its Item Search Functionality CVSS 3.1HIGH 8.8
  • TI-2025-41982 opensourcepos has Cross-Site Request Forgery vulnerability that leads to Unauthorized Administrator Creation CVSS 3.1HIGH 8.8
  • TI-2025-41728 opensourcepos has a Cross-site Scripting vulnerability CVSS 3.1HIGH 8.1
  • TI-2025-43027 An issue in OpenSourcePOS v3.4.1 allows attackers to execute arbitrary code via returning a crafted AJAX response. CVSS 3.1HIGH 7.4
  • TI-2025-41087 A Cross-site scripting (XSS) vulnerability in Create/Update Customer(s) in Open Source… CVSS 3.1HIGH 7.2
  • TI-2025-41086 A Cross-site scripting (XSS) vulnerability in Create/Update Item(s) Module in Open Source… CVSS 3.1HIGH 7.2
See all 18 →

Sources