CVE-2025-11843

Therefore™ Online and Therefore™ On-Premises contains an account impersonation issue, which could potentially allow the attacker to access all the stored data

HIGH
8.8
CVSS Score
Published: October 31, 2025 at 09:43 AM UTC
Updated: October 7, 2026 at 09:10 PM UTC
1 product affected across 1 vendorTherefore

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Severity
HIGH8.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

Vendor AdvisoryMitigation
Source: cverecord
https://www.canon-europe.com/psirt/advisory-information/

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCanon_EMEA
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-290

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