CVE-2026-51923
IDOR in docuForm Client allows remote code execution and cross-account data access
Is CVE-2026-51923 being exploited?
Not confirmed. CVE-2026-51923 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.68% probability of exploitation in the next 30 days.
How severe is CVE-2026-51923?
CVE-2026-51923 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-51923?
Not known from our data. No patch reference has been recorded for CVE-2026-51923, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-51923 affect?
CVE-2026-51923 affects docuForm GmbH Client v11.11c, Servers storing docuForm user settings. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-51923?
Isolate affected clients, block access to user-settings, enforce least privilege, apply vendor patch when released
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote arbitrary code execution via user-settings; attacker can read/modify other users' data and fully compromise accounts.
Immediate action required