CVE-2026-82224 in SliceWP Plugin
Summary
by MITRE • 09/01/2026
Unauthenticated Cross Site Scripting (XSS) in SliceWP <= 1.2.10 versions.
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Analysis
by VulDB Data Team • 09/01/2026
The vulnerability identified as an unauthenticated cross-site scripting flaw within SliceWP versions prior to or equal to 1.2.10 represents a significant security risk for websites utilizing this WordPress plugin for subscription management and payment processing. Cross-site scripting, commonly referred to as XSS, is a type of injection attack where malicious scripts are injected into otherwise benign and trusted web pages. In the specific context of SliceWP, the vulnerability stems from insufficient input validation or sanitization mechanisms within the application code. This deficiency allows an attacker who does not need to authenticate with valid credentials to inject client-side script code, typically JavaScript, which is then executed by the victim's browser when they interact with a specially crafted URL or page hosted on the targeted site. The absence of authentication requirements for this vector makes it particularly dangerous as it lowers the barrier to entry significantly, allowing any internet user to potentially exploit the flaw without prior access privileges.
From a technical perspective, the core issue lies in how the application handles data received from users and subsequently renders it back into the HTML output without proper encoding or escaping. When a request containing malicious payload is processed by SliceWP, the system fails to neutralize special characters that have semantic meaning in JavaScript contexts. Consequently, when another user visits the affected page, their browser interprets the injected code as legitimate script rather than static text. This execution environment grants the attacker the ability to run scripts with the same privileges and permissions as the trusted website itself. The impact of this capability is profound, as it enables a wide range of malicious activities including session hijacking, where an attacker can steal authentication cookies or tokens to impersonate valid users; keylogging, which involves capturing keystrokes entered by victims into login forms or other sensitive fields; and defacement, where the visual presentation of the site is altered. Furthermore, attackers may redirect users to phishing sites designed to harvest credentials from unsuspecting visitors, thereby compromising not only individual accounts but potentially leading to broader organizational data breaches if administrative access is obtained through such means.
This vulnerability aligns with CWE-79, which classifies Improper Neutralization of Input During Web Page Generation known as Cross-site Scripting. The attack vector falls under the MITRE ATT&CK framework category of Client-Side Injection, specifically mapping to techniques that involve injecting scripts into web pages viewed by other users. Because the exploitation does not require user interaction beyond visiting a link or page crafted by the attacker, it is often categorized as stored or reflected XSS depending on whether the payload is persisted in the database or passed via URL parameters. The unauthenticated nature of this flaw means that automated scanning tools and malicious actors can easily discover and exploit these vulnerabilities across large numbers of sites running vulnerable versions of SliceWP. This scalability increases the likelihood of widespread compromise, particularly for e-commerce platforms where financial data and customer information are routinely processed and stored.
To mitigate this risk, immediate action is required to update the SliceWP plugin to version 1.2.11 or any later release that includes patches addressing these input validation deficiencies. Developers should ensure that all user-supplied inputs are strictly validated against expected formats and sanitized using context-appropriate encoding techniques before being rendered in HTML output. Implementing a Content Security Policy header can also provide an additional layer of defense by restricting the sources from which scripts can be loaded, thereby mitigating the impact even if some injection attempts succeed. Regular security audits and code reviews focusing on input handling are essential to prevent similar vulnerabilities in future updates. Administrators should monitor for any unusual activity or changes in site behavior that might indicate a successful exploitation attempt and maintain up-to-date backups to facilitate rapid recovery in case of compromise.