Description

Unauthenticated Broken Access Control in Legal Text Connector of the IT-Recht Kanzlei <= 1.0.13 versions.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "6.5",
  "pubDate": "2026-08-06T15:17:20.460Z",
  "pubdate": "2026-08-06T15:17:20.460Z",
  "executiveSummary": "An unauthenticated broken access control vulnerability has been identified within the Legal Text Connector component of the IT-Recht Kanzlei plugin. This security flaw impacts software versions 1.0.13 and below. The vulnerability allows unauthenticated remote attackers to interact with vulnerable endpoints and potentially bypass intended authorization boundaries, leading to unauthorized actions or data exposure depending on the specific functionality exposed by the connector. The risk implication is significant as it requires zero authentication or privilege requirements, enabling arbitrary external actors to exploit the weakness directly over the network. Exploitation relies on the exposure of improper access validation routines within the vulnerable component, which fails to verify whether incoming requests originate from authorized entities before processing them. Remediation requires updating the affected product to a patched version once available or restricting access to the vulnerable endpoints at the web server or application firewall level.",
  "technicalDetails": "The vulnerability stems from insufficient access control enforcement within the Legal Text Connector component of the IT-Recht Kanzlei product, specifically affecting versions 1.0.13 and prior. The root cause of the issue lies in the lack of proper authentication checks and authorization validation routines on sensitive endpoints or handler functions exposed by the plugin. In a standard architecture, requests interfacing with connector utilities or data synchronization modules are expected to validate session tokens, capability permissions, or cryptographic signatures to verify the legitimacy of the caller. However, in the vulnerable versions, these security checks are either omitted or improperly implemented.\nThe attack flow begins when an unauthenticated remote attacker sends a specially crafted HTTP request directly to the vulnerable Legal Text Connector endpoint over the network. Because the underlying codebase fails to validate authentication status or privilege levels, the application processes the incoming request as if it were legitimate and authorized. Depending on the exact functionality exposed by the vulnerable component, the payload behavior may permit unauthorized retrieval, modification, or execution of administrative workflows associated with the legal text integration.\nNetwork exposure is public-facing if the underlying web application is accessible via the internet, allowing any external threat actor to initiate the exploitation method without prior system access. The privilege requirements are entirely absent, meaning attackers do not need valid user accounts, administrative rights, or prior interaction with the target system. Post-exploitation impact varies based on the operational context of the connector, potentially exposing sensitive legal configurations, facilitating unauthorized state changes, or serving as an entry point for deeper compromise of the host application environment."
}