CVE-2025-2776 is an XML External Entity (XXE) vulnerability classified under CWE-611, found in SysAid On-Prem versions up to 23.3.40. The vulnerability arises due to improper restriction of XML external entity references during the processing of Server URL inputs. This flaw allows unauthenticated remote attackers to submit crafted XML payloads that can trigger the XML parser to process external entities. Exploiting this, attackers can read arbitrary files on the server and escalate privileges by taking over administrator accounts. The vulnerability is exploitable over the network without requiring authentication or user interaction, increasing its risk profile. The CVSS 3.1 score of 9.3 reflects its critical nature, with a network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), and a scope change (S:C) indicating that the vulnerability affects resources beyond the initially vulnerable component. The impact on confidentiality is high due to file disclosure and account takeover, while integrity impact is not directly affected, and availability impact is low. No patches are currently linked, and no known exploits have been reported in the wild, but the vulnerability's characteristics make it a prime target for attackers. The vulnerability affects organizations relying on SysAid On-Prem for IT service management, potentially compromising sensitive data and administrative control.

For European organizations, the impact of CVE-2025-2776 is significant. SysAid On-Prem is widely used in IT service management, and a successful exploit could lead to unauthorized access to critical administrative functions, resulting in full system compromise. Confidential data stored or processed by the platform could be exposed through file read primitives, leading to data breaches and compliance violations under GDPR. The takeover of administrator accounts could allow attackers to manipulate IT workflows, disable security controls, or deploy further malware, disrupting business operations. The vulnerability's network-exploitable and unauthenticated nature increases the risk of widespread attacks, especially in sectors with high reliance on ITSM tools such as finance, healthcare, and government. The potential for lateral movement within networks following compromise could amplify damage. Given the criticality, organizations face risks including reputational damage, regulatory penalties, and operational downtime.

Organizations should immediately verify their SysAid On-Prem version and upgrade to a fixed version once available from the vendor. In the absence of an official patch, implement network-level protections such as restricting access to the SysAid server to trusted IP addresses and deploying Web Application Firewalls (WAFs) with rules to detect and block XXE payloads. Disable XML external entity processing in the application configuration if possible. Conduct thorough audits of administrator accounts and monitor logs for suspicious activity indicating exploitation attempts. Employ network segmentation to isolate the SysAid server from critical infrastructure. Regularly back up configuration and data to enable recovery in case of compromise. Engage with SysAid support for guidance and stay alert for vendor advisories. Educate IT staff on the risks of XXE vulnerabilities and ensure secure coding practices are followed in custom integrations.