CVE-2025-8681 is a stored Cross-Site Scripting (XSS) vulnerability affecting Pegasystems' Pega Infinity platform, specifically versions from 7.1.0 through 24.2.2. The vulnerability arises from improper neutralization of input during web page generation, classified under CWE-79. This flaw exists in a user interface component and allows an attacker to inject malicious scripts that are stored and later executed in the context of other users' browsers. Exploitation requires a high-privileged user with a developer role to inject the malicious payload, and no user interaction is needed for the payload to execute once stored. The CVSS v3.1 base score is 5.5 (medium severity), reflecting network attack vector, low attack complexity, high privileges required, no user interaction, unchanged scope, high confidentiality impact, low integrity impact, and no availability impact. Although no known exploits are currently reported in the wild, the vulnerability poses a risk of data disclosure through script execution in the context of privileged users or other users viewing the affected interface. Stored XSS can lead to session hijacking, credential theft, or unauthorized actions performed on behalf of users. Given the requirement for a high-privileged developer role to inject the payload, the attack surface is limited but still significant in environments where multiple developers or administrators have access. The vulnerability affects a widely used enterprise BPM and CRM platform, which is often integrated into critical business processes.

For European organizations using Pega Infinity, this vulnerability could lead to unauthorized disclosure of sensitive information, especially since the confidentiality impact is rated high. Attackers exploiting this flaw could execute scripts that steal session tokens or sensitive data from privileged users, potentially leading to further compromise of enterprise systems. Given Pega Infinity's role in automating business workflows and customer relationship management, exploitation could disrupt critical business operations or lead to data breaches involving personal or financial data protected under GDPR. The requirement for a high-privileged developer role reduces the likelihood of external attackers exploiting this vulnerability directly; however, insider threats or compromised developer accounts could be leveraged. The impact is particularly relevant for sectors with stringent data protection requirements, such as finance, healthcare, and government agencies across Europe. Additionally, the lack of known public exploits suggests organizations have a window to apply mitigations before active exploitation occurs.

European organizations should implement strict access controls and monitoring around developer and high-privilege accounts within Pega Infinity to minimize the risk of malicious input injection. Enforce multi-factor authentication (MFA) for all privileged users to reduce the risk of account compromise. Conduct regular code reviews and input validation audits on user interface components to detect and remediate improper input handling. Although no official patches are listed yet, organizations should monitor Pegasystems' advisories closely and apply security updates promptly once available. Employ Web Application Firewalls (WAFs) with custom rules to detect and block typical XSS payloads targeting Pega Infinity interfaces. Additionally, implement Content Security Policy (CSP) headers to restrict script execution contexts and reduce the impact of potential XSS attacks. Logging and alerting on unusual developer activity or injection attempts can provide early detection of exploitation attempts. Finally, conduct security awareness training for developers and administrators about the risks of XSS and secure coding practices.