Use of Client-Side Authentication in multiple BinSoft products
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Multiple BinSoft products perform client-side authentication. An attacker with access to any application instance connected to the backend server can bypass the login verification process by manipulating the application binary and authenticate as an arbitrary user. 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.
Why it matters now
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| BinSoft | mpGabinet | up to 23.12.19 | — | No fix listed | CNA |
| BinSoft | mpFirma | up to 26.4.9 | — | No fix listed | CNA |
| BinSoft | mpFaktura | up to 26.4.9 | — | No fix listed | CNA |
| BinSoft | mpFirma ERP | up to 26.4.9 | — | No fix listed | CNA |
| BinSoft | mpSekretariat | up to 25.2.4 | — | No fix listed | CNA |
| BinSoft | mpPOS | up to 25.2.4 | — | No fix listed | CNA |
| BinSoft | mpCRM | up to 25.2.4 | — | No fix listed | CNA |
| BinSoft | mpWarsztat | up to 20.4.28 | — | No fix listed | CNA |
- mpGabinet VendorBinSoft Affected up to 23.12.19 Fixed in — No fix listed CNA
- mpFirma VendorBinSoft Affected up to 26.4.9 Fixed in — No fix listed CNA
- mpFaktura VendorBinSoft Affected up to 26.4.9 Fixed in — No fix listed CNA
- mpFirma ERP VendorBinSoft Affected up to 26.4.9 Fixed in — No fix listed CNA
- mpSekretariat VendorBinSoft Affected up to 25.2.4 Fixed in — No fix listed CNA
- mpPOS VendorBinSoft Affected up to 25.2.4 Fixed in — No fix listed CNA
- mpCRM VendorBinSoft Affected up to 25.2.4 Fixed in — No fix listed CNA
- mpWarsztat VendorBinSoft Affected up to 20.4.28 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-40551
- 2026-10-03 Alias added: GHSA-4r5q-f55r-9frx
References
More BinSoft vulnerabilities
- TI-2026-29296 Privilege Escalation in multiple BinSoft products CVSS 4.0MEDIUM 6.9
- TI-2026-29298 Remote Code Execution in multiple BinSoft products CVSS 4.0MEDIUM 4.7
Sources
- CVE-2026-40551 · CVE Program
- CVE-2026-40551 · NVD
- FIRST EPSS
- GHSA-4r5q-f55r-9frx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences