CVE-2026-40552: Remote Code Execution in multiple BinSoft products

Severity: medium (CVSS 4.7 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-28 · updated 2026-10-26
Weakness: CWE-669

Description

Multiple BinSoft products are vulnerable to Remote Command Execution. An authorized user with access to the application and direct access to the backend database can achieve system command execution by uploading an attachment and modifying its storage path in the database to reference an attacker-controlled remote network resource. Alternatively, it is possible to use a previously uploaded file and change its reference. When the application processes the attachment, and a user tries to open it, the referenced resource is executed by the system. Critically, this vulnerability can be exploited by any unauthenticated attacker by chaining it with CVE-2026-40550 and CVE-2026-40551, which allows obtaining database access, and logging onto any account. The described issue affects all published versions. The vendor stated that this issue is a direct result of the architecture model in which the software is distributed, and that it will be mitigated with a corrected installation manual.

Affected products

BinSoft mpCRM: through 25.2.4
BinSoft mpFaktura: through 26.4.9
BinSoft mpFirma: through 26.4.9
BinSoft mpFirma ERP: through 26.4.9
BinSoft mpGabinet: through 23.12.19
BinSoft mpPOS: through 25.2.4
BinSoft mpSekretariat: through 25.2.4
BinSoft mpWarsztat: through 20.4.28

References

Get alerted when CVE-2026-40552 or the next vulnerability affects your stack