CVE-2026-50705 in Frappe
Summary
by MITRE • 06/24/2026
A Cross-Site Scripting (XSS) vulnerability exists in Frappe Framework version 17.0.0-dev due to improper neutralization of untrusted input in the Form Dashboard headline renderer.
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Analysis
by VulDB Data Team • 06/24/2026
The vulnerability under discussion represents a critical cross-site scripting flaw within the Frappe Framework version 17.0.0-dev, specifically manifesting in the Form Dashboard headline renderer component. This issue arises from inadequate sanitization of user-supplied data that flows into the rendering logic, creating an avenue for malicious actors to inject arbitrary JavaScript code. The vulnerability is classified as CWE-79 - Improper Neutralization of Input During Web Page Generation, which directly aligns with established web application security best practices and standards. When a user submits data containing malicious scripts through form fields that are subsequently displayed in the dashboard headline, the framework fails to properly escape or filter this input before rendering it within the browser context.
The technical exploitation of this vulnerability occurs when untrusted input enters the system through form submissions or API endpoints that feed into the Form Dashboard functionality. The headline renderer component processes this data without adequate validation or sanitization measures, allowing malicious payloads to persist in the application's output. Attackers can craft specially designed inputs that include script tags, event handlers, or other malicious code sequences that execute within the context of authenticated users' browsers. This creates a persistent threat vector where compromised user sessions could be hijacked, sensitive data could be exfiltrated, or malicious actions could be performed on behalf of legitimate users. The vulnerability is particularly concerning because it affects the dashboard rendering logic which typically operates with elevated privileges and may display sensitive information.
The operational impact of this XSS vulnerability extends beyond simple script execution to encompass potential session hijacking, data theft, and privilege escalation attacks. When authenticated users view pages containing malicious content injected through the vulnerable headline renderer, their browser sessions become compromised. This can lead to unauthorized access to confidential business data, modification of critical system parameters, or even complete account takeovers. The attack surface is further expanded when considering that dashboard elements often display information from multiple sources including user-generated content, system logs, and administrative data. Security professionals should note that this vulnerability aligns with ATT&CK technique T1531 - Establish Account Access, as successful exploitation could provide attackers with persistent access to privileged system functionalities through compromised user sessions.
Mitigation strategies for this vulnerability require immediate implementation of proper input validation and output encoding mechanisms throughout the Frappe Framework's rendering pipeline. The recommended approach involves implementing comprehensive sanitization routines that filter or escape all user-supplied data before it reaches any rendering components, particularly those involved in dashboard display logic. Organizations should deploy Content Security Policy headers to provide additional defense-in-depth measures that limit script execution capabilities even if input filtering fails. Regular security updates and patches should be prioritized to address the underlying framework vulnerability, while application developers must ensure that all custom extensions or modifications adhere to secure coding practices. The implementation of automated input validation frameworks and regular penetration testing can help identify similar issues in other components of the system architecture. Additionally, monitoring for suspicious user activities and implementing proper logging mechanisms will aid in early detection of potential exploitation attempts.