A security issue has been identified in Appian Enterprise Business Process Management version 25.3. The vulnerability is related to incorrect access control, which under certain conditions could allow unauthorized access to information. NOTE: this has been disputed because the CVE Record information does not originate from the Supplier, and the report lacks specificity about why a problem exists, how the behavior could be reproduced, and whether any action could be taken to resolve the problem.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: