Authentication bypass by spoofing in Therefore Online and Therefore On-Premises
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-290.
Summary
Therefore Corporation GmbH has recently become aware that Therefore™ Online and Therefore™ On-Premises contain an account impersonation vulnerability. A malicious user may potentially be able to impersonate the web service account or the account of a service using the API when connecting to the Therefore™ Server. If the malicious user gains this impersonation user access, then it is possible for them to access the documents stored in Therefore™. This impersonation is at application level (Therefore access level), not the operating system level.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
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 |
|---|---|---|---|---|---|
| Therefore Corporation GmbH | Therefore Online and Therefore On-Premises | up to 2025 | — | No fix listed | CNA |
- Therefore Online and Therefore On-Premises VendorTherefore Corporation GmbH Affected up to 2025 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-11843
- 2026-10-03 Alias added: GHSA-j67p-5mwc-frf9
References
Sources
- CVE-2025-11843 · CVE Program
- CVE-2025-11843 · NVD
- FIRST EPSS
- GHSA-j67p-5mwc-frf9 · 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