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CVE-2026-51923 docuForm GmbH CVE debrief

An Insecure Direct Object Reference (IDOR) vulnerability exists in docuForm GmbH Client v.11.11c, allowing a remote attacker to execute arbitrary code via the user settings component, and modify or retrieve sensitive data associated with other users’ accounts. The vulnerability has a CVSS score of 8.1 and is classified as HIGH severity. This IDOR vulnerability is particularly concerning as it could allow attackers to manipulate user settings, potentially leading to unauthorized access or data breaches. Security teams should be aware of the potential impact on user data and take immediate action to mitigate this vulnerability.

Vendor
docuForm GmbH
Product
Client
CVSS
HIGH 8.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-09
Original CVE updated
2026-07-10
Advisory published
2026-07-09
Advisory updated
2026-07-10

Who should care

Security teams and administrators responsible for docuForm GmbH Client v.11.11c should prioritize patching this vulnerability to prevent potential exploitation. Additionally, IT teams managing user settings and access controls, as well as compliance officers ensuring data protection, should be aware of the risks associated with this IDOR vulnerability. Operators and platform administrators should also review their current deployments to assess potential exposure.

Technical summary

The CVE-2026-51923 vulnerability is an Insecure Direct Object Reference (IDOR) issue in docuForm GmbH Client v.11.11c. This vulnerability allows a remote attacker to execute arbitrary code via the user settings component. Additionally, an attacker can modify or retrieve sensitive data associated with other users’ accounts. The vulnerability is characterized by the following CVSS metrics: AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Defensive priority

High priority should be given to patching this vulnerability due to its high CVSS score and potential impact on user data.

Recommended defensive actions

  • Apply the latest patch or update provided by docuForm GmbH to address the IDOR vulnerability.
  • Implement additional monitoring to detect potential exploitation attempts.
  • Review and restrict access to sensitive user settings components.
  • Consider compensating controls such as Web Application Firewalls (WAFs) to detect and prevent exploitation.
  • Review current user settings and access controls to ensure they are secure.
  • Perform a thorough review of system logs to detect any signs of exploitation.
  • Update incident response plans to include procedures for addressing IDOR vulnerabilities.

Evidence notes

The CVE record was published on 2026-07-09T21:16:55.480Z and was last modified on 2026-07-10T16:16:31.587Z. The NVD entry is currently in the 'Received' status. Limited information is available about the specific affected versions and configurations beyond the mentioned docuForm GmbH Client v.11.11c.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-09T21:16:55.480Z and has not been modified since then. The NVD entry is currently Received.