CVE-2026-96830 in GiveWP Plugin
Summary
by MITRE • 09/30/2026
Unauthenticated Cross Site Scripting (XSS) in GiveWP <= 4.16.9 versions.
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Analysis
by VulDB Data Team • 09/30/2026
The vulnerability identified as an unauthenticated cross-site scripting flaw within GiveWP, specifically affecting versions up to and including 4.16.9, represents a significant security risk for websites utilizing this popular WordPress donation plugin. Cross-site scripting is categorized under CWE-79 in the Common Weakness Enumeration standard, which defines it as improper neutralization of input during web page generation. In this specific context, the flaw stems from insufficient validation and sanitization of user-supplied data within the plugin's administrative or public-facing interfaces that do not require authentication to access certain endpoints or parameters. This architectural oversight allows an attacker to inject malicious client-side scripts into pages viewed by other users, bypassing standard browser security models such as the same-origin policy.
The technical mechanism behind this vulnerability typically involves a lack of proper encoding when rendering user input back to the browser without adequate context-aware escaping. When a victim visits a compromised page or interacts with a specially crafted URL containing malicious JavaScript payloads, the browser executes the injected script in the context of the vulnerable website. This execution environment grants the attacker elevated privileges relative to other web applications on the same domain, effectively allowing them to act as if they were an authenticated user or even the site administrator depending on the victim's role and session state. The absence of authentication requirements for triggering this flaw means that any internet user can exploit it without needing valid credentials, significantly lowering the barrier to entry for attackers.
The operational impact of such a vulnerability is severe and multifaceted. Attackers can steal sensitive information such as administrative cookies, session tokens, or personally identifiable information stored in local storage if accessible within the script's scope. Furthermore, they can perform actions on behalf of the victim, including modifying donation records, changing plugin settings, or defacing the website interface. In many cases, this vulnerability serves as a vector for further attacks, such as redirecting users to phishing sites or distributing malware through drive-by downloads. The ATT&CK framework classifies this behavior under techniques related to Client-Side Scripting Injection and potentially Credential Access via Browser Session Hijacking if session tokens are harvested.
Mitigation strategies must address both immediate remediation and long-term security hygiene. The primary and most effective solution is to upgrade the GiveWP plugin to a version newer than 4.16.9, where developers have implemented proper input validation and output encoding mechanisms to neutralize script injection attempts. For organizations unable to update immediately due to compatibility constraints, implementing Web Application Firewall rules that detect and block common XSS payloads in HTTP requests can provide temporary protection. Additionally, enforcing strict Content Security Policy headers on the website can limit the execution of unauthorized scripts, thereby reducing the blast radius even if an injection attempt succeeds. Regular security audits and code reviews focusing on input handling are essential to prevent similar vulnerabilities from being introduced in future updates or custom integrations with the plugin.