CVE-2025-62183: Pega Platform Stored XSS Vulnerability

CVE-2025-62183 Overview

CVE-2025-62183 is a Stored Cross-Site Scripting (XSS) vulnerability affecting Pega Platform versions 8.1.0 through 25.1.1. The vulnerability exists within a user interface component and requires an administrative user with extensive access rights to exploit. While the impact to confidentiality and integrity is considered low due to the elevated privileges required, stored XSS vulnerabilities can persist in the application and affect multiple users who access the compromised component.

Critical Impact

Administrative users with extensive access rights can inject malicious scripts into Pega Platform UI components, potentially compromising the sessions and data of other users who view the affected content.

Affected Products

• Pega Platform versions 8.1.0 through 25.1.1
• All Pega Platform deployments utilizing the affected user interface components

Discovery Timeline

• 2026-02-17 - CVE-2025-62183 published to NVD
• 2026-02-18 - Last updated in NVD database

Technical Details for CVE-2025-62183

Vulnerability Analysis

This vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation), commonly known as Cross-Site Scripting. The stored variant of XSS is particularly concerning because malicious payloads persist on the server and execute whenever victims access the compromised content.

The vulnerability exists in a user interface component within Pega Platform. When an administrative user with extensive access rights submits input containing malicious JavaScript code, the application fails to properly sanitize or encode this input before storing it. Subsequently, when other users view the affected UI component, the malicious script executes in their browser context.

While the exploitation requires high privileges (administrative access), the network-accessible attack vector means that any authenticated administrator with the necessary permissions can potentially inject malicious scripts. The requirement for user interaction (victims must view the compromised content) somewhat limits the exploitation window.

Root Cause

The root cause of this vulnerability is improper input validation and output encoding within the affected Pega Platform user interface component. The application fails to neutralize potentially dangerous characters and script tags when processing user-supplied input, allowing JavaScript code to be stored and later rendered in victims' browsers.

Attack Vector

The attack requires network access to the Pega Platform application and administrative credentials with extensive access rights. An attacker would:

1. Authenticate to the Pega Platform as an administrative user
2. Navigate to the vulnerable user interface component
3. Submit malicious JavaScript payload through the input field
4. The payload is stored in the application database
5. When other users (including other administrators) view the affected component, the malicious script executes in their browser context

This could enable session hijacking, credential theft, or further privilege escalation within the Pega Platform environment. For detailed technical information, refer to the Pega Security Advisory N25.

Detection Methods for CVE-2025-62183

Indicators of Compromise

• Unexpected JavaScript or HTML tags present in database fields associated with UI components
• Unusual administrative account activity or privilege usage patterns
• Client-side errors or unexpected script execution reported by users
• Web application firewall (WAF) alerts for XSS patterns targeting Pega Platform endpoints

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block XSS payloads in HTTP requests to Pega Platform
• Enable detailed audit logging for administrative actions within Pega Platform
• Deploy Content Security Policy (CSP) headers to prevent inline script execution
• Utilize browser-based XSS detection tools and security plugins for testing

Monitoring Recommendations

• Monitor Pega Platform audit logs for suspicious administrative modifications to UI components
• Implement real-time alerting for WAF XSS signature matches
• Review user-submitted content in affected components for script injection attempts
• Track administrative session patterns for anomalous behavior

How to Mitigate CVE-2025-62183

Immediate Actions Required

• Review the Pega Security Advisory N25 for vendor-specific guidance
• Apply the latest security patches for Pega Platform as soon as available
• Audit administrative accounts and reduce privileges where possible
• Implement additional input validation and output encoding at the application layer

Patch Information

Pega has released guidance for this vulnerability in their Security Advisory N25. Organizations running affected versions (8.1.0 through 25.1.1) should consult the Pega Security Advisory N25 for specific remediation instructions and patch availability.

Workarounds

• Implement Content Security Policy (CSP) headers with strict script-src directives to mitigate script execution
• Deploy a Web Application Firewall (WAF) with XSS detection rules in front of Pega Platform
• Conduct a privilege audit and apply the principle of least privilege to administrative accounts
• Enable input validation rules at the network perimeter or reverse proxy level
• Consider restricting access to the affected UI components until patches are applied