OpenSourcePOS 3.4.1 contains a Local File Inclusion (LFI) vulnerability in the Sales.php::getInvoice() function.

published 2026-02-20 8mo ago modified 2026-06-17 4mo ago also EUVD-2026-7501

cvss: 8.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 51%
public exploits: 0; none known

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).

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 8mo ago (2026-02-23)

Exploit prediction

0.66% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

github.com https://github.com/hungnqdz/CVE-2026-26746/blob/main/CVE-2026-26746.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness

CWE-434 Unrestricted Upload of File with Dangerous Type

References

github.com /hungnqdz/CVE-2026-26746/blob/main/CVE-2026-26746.md
exploit, mitigation, third-party-advisory
github.com /opensourcepos/opensourcepos
product

Sources

CVE List CVE-2026-26746
NVD CVE-2026-26746

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