CVE-2026-14337 in Infinity
Summary
by MITRE • 08/04/2026
Pega Platform versions 23.1.0 through 25.1.3 are affected by an Stored Cross-site scripting (XSS) vulnerability in a user interface component. Requires a high privileged user with a developer role.
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Analysis
by VulDB Data Team • 08/04/2026
This stored cross-site scripting vulnerability exists within the Pega Platform user interface components affecting versions between 23.1.0 and 25.1.3 inclusive. The flaw allows an attacker with a high-privileged user account possessing developer role permissions to inject malicious scripts that persist in the application's database or storage mechanisms. This type of vulnerability falls under CWE-079 - Improper Neutralization of Input During Web Page Generation, which is a fundamental weakness in web application security where input validation and output encoding are insufficient. The vulnerability represents a significant risk because it enables persistent script execution across multiple user sessions rather than requiring direct exploitation of individual user interactions.
The technical mechanism behind this stored XSS vulnerability involves the platform's handling of user-provided data within UI components that are subsequently rendered to other users. When a developer with sufficient privileges creates or modifies content through the administrative interface, the application fails to properly sanitize or encode the input before storing it in the system. This allows malicious scripts to be embedded in fields such as form labels, descriptions, or configuration parameters where user input is accepted. The stored nature of this vulnerability means that once the malicious payload is injected into the system, it will execute automatically whenever other users view the affected content or interact with the compromised UI components.
The operational impact of this vulnerability extends beyond simple script injection as it provides attackers with a persistent foothold within the application environment. An attacker with developer privileges could potentially escalate their access to compromise sensitive data, manipulate business processes, or establish backdoors within the Pega platform. The risk is particularly concerning because the vulnerability requires only a high-privileged user account rather than administrative access, making it more accessible to attackers who have gained access to developer credentials through various means such as credential theft, social engineering, or insider threats. This aligns with ATT&CK technique T1078.004 - Valid Accounts: Cloud Accounts which describes how adversaries can leverage compromised legitimate accounts to maintain persistent access.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms throughout the platform's UI components. Organizations should enforce strict sanitization of all user inputs before storage, particularly in fields that are later rendered to other users. The implementation of Content Security Policy (CSP) headers can provide additional protection layers against script execution. Regular security audits and code reviews should be conducted to identify similar vulnerabilities in other UI components. Additionally, privilege escalation controls must be enforced through proper role-based access controls and regular credential rotation policies. Organizations should also consider implementing web application firewalls and monitoring systems that can detect unusual patterns of data modification by privileged accounts. The vulnerability demonstrates the critical importance of following secure coding practices as outlined in OWASP Top Ten 2021 category a03:2021 - Injection, which emphasizes the need for proper input validation and output encoding to prevent such persistent security flaws from being introduced into web applications.
This vulnerability represents a significant concern for organizations relying on Pega Platform for business-critical operations, as it could enable attackers to compromise entire application workflows and potentially access sensitive business data. The attack surface is particularly wide given that developer roles often have broad access to system configuration and user interface customization features where such vulnerabilities can be exploited most effectively. Organizations should prioritize patching this vulnerability through official Pega updates while implementing additional defensive measures to reduce the impact if exploitation occurs.