Impact
Several BinSoft applications, including mpCRM, mpFaktura, mpFirma, mpFirma ERP, mpGabinet, mpPOS, mpSekretariat, and mpWarsztat, enable execution of arbitrary system commands by a user with database write access. An attacker can upload a file attachment and then alter its database record so that the storage path points to a remote resource controlled by the attacker. When a user opens the attachment, the application fetches that remote file and executes it on the server, effectively achieving remote command execution. The flaw is a classic case of improper validation of external resources, classified as CWE‑669, and can be amplified by chaining with CVE‑2026‑40550 or CVE‑2026‑40551 to gain database access as an unauthenticated user.
Affected Systems
The affected systems are the eight BinSoft product lines listed above: mpCRM, mpFaktura, mpFirma, mpFirma ERP, mpGabinet, mpPOS, mpSekretariat, and mpWarsztat. All published releases of these products are vulnerable, regardless of version number, as the flaw stems from the shared architecture model.
Risk and Exploitability
The CVSS score of 4.7 places this flaw in the medium severity range. The EPSS score of less than 1% indicates a low likelihood that this vulnerability has been exploited at scale, and it is not listed in CISA’s KEV catalog. Still, the flaw requires database write access or a chained vulnerability to modify an attachment’s storage path. When combined with CVE‑2026‑40550 or CVE‑2026‑40551, it can provide unauthenticated access to the database and enable remote command execution, potentially compromising the entire host. The overall risk remains moderate to high, especially in environments where these BinSoft products are exposed and database access controls are relaxed.
OpenCVE Enrichment