CVE-2026-73357 in GiveWP Plugin
Summary
by MITRE • 08/13/2026
Donor Cross Site Scripting (XSS) in GiveWP < 4.16.6 versions.
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Analysis
by VulDB Data Team • 08/13/2026
The vulnerability identified as Cross Site Scripting in GiveWP versions prior to 4.16.6 represents a critical security flaw that allows attackers to inject malicious scripts into web applications. This particular weakness affects the donation platform's handling of user input within donor-related functionality, creating an avenue for persistent threat actors to execute unauthorized code within the context of victim browsers. The vulnerability stems from inadequate sanitization and validation of input parameters that are processed during donor registration, profile updates, or donation submission workflows.
The technical implementation of this XSS flaw manifests when unfiltered user-supplied data is directly embedded into web pages without proper encoding or escaping mechanisms. Attackers can craft malicious payloads containing script tags or other executable code within donor form fields, which then get rendered on subsequent page views or administrative interfaces. This creates a persistent threat vector where compromised sessions or data exfiltration becomes possible through the execution of unauthorized scripts in legitimate user contexts. The vulnerability operates under CWE-79 which specifically addresses Cross Site Scripting flaws in web applications and aligns with ATT&CK technique T1566.001 related to spearphishing attachments.
The operational impact of this vulnerability extends beyond simple script execution as it enables attackers to hijack user sessions, steal sensitive donor information, manipulate donation records, or redirect users to malicious websites. Administrative interfaces become particularly vulnerable as the injected scripts can execute with elevated privileges when donors interact with compromised administrative panels. This creates a significant risk for organizations handling sensitive financial data where donor privacy and transaction integrity are paramount. The vulnerability affects the core functionality of donor management systems, potentially compromising the entire donation ecosystem.
Mitigation strategies should prioritize immediate patching to version 4.16.6 or later which includes proper input sanitization and output encoding mechanisms. Organizations should implement comprehensive input validation at multiple layers including client-side and server-side processing, ensure proper HTML escaping for dynamic content rendering, and establish regular security auditing of user-facing forms. Additional protective measures include implementing content security policies to restrict script execution, using secure coding practices that prevent direct data insertion into web pages without proper sanitization, and conducting regular penetration testing to identify similar vulnerabilities in custom integrations or third-party components. Network monitoring should also be enhanced to detect anomalous patterns indicating potential exploitation attempts through XSS vectors.