CVE-2026-26746: Sales · LFI
Source CVE Database V5
Not known to be exploited · CVSS 8.8 High.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 20 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
Organizations should immediately assess their use of OpenSourcePOS 3.4.1 and prioritize mitigating this vulnerability. 2) Harden the Sales.php::getInvoice() function by validating and sanitizing the Invoice Type parameter to prevent path traversal or inclusion of unintended files. 3) Implement web application firewalls (WAF) with rules to detect and block LFI attempts and suspicious file upload activity. 4) Limit privileges of the web server process to minimize the impact of potential code execution. 5) Conduct regular audits of server logs to detect unusual file access patterns or uploads. 6) Isolate the POS system network segment to reduce lateral movement risk. 7) Prepare incident response plans specific to POS system compromise. 8) Monitor vendor communications for patches or updates and apply them promptly once available. 9) Educate staff about the risks of privilege misuse and enforce strong access controls. These targeted measures go beyond generic advice by focusing on the specific vulnerable components and attack vectors involved.
Description
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).