CVE-2026-109697 in SureCart Plugin
Summary
by MITRE • 10/13/2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Brainstorm Force SureCart surecart allows Stored XSS.This issue affects SureCart: from n/a through 4.9.4.
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Analysis
by VulDB Data Team • 10/13/2026
The identified security flaw represents a classic instance of Improper Neutralization of Input During Web Page Generation, commonly known as Cross-Site Scripting or XSS. Specifically, this vulnerability manifests as a Stored XSS within the SureCart plugin for WordPress, affecting versions ranging from n/a through 4.9.4. Unlike reflected XSS where malicious scripts are executed via manipulated URLs, stored XSS involves the persistence of malicious code on the target server. In this context, an attacker can inject harmful JavaScript payloads into data fields that are subsequently saved to a database or other persistent storage mechanisms within the SureCart application environment. When legitimate users or administrators later access pages containing this tainted data, the browser executes the embedded script in the security context of the vulnerable website, leading to severe compromise scenarios.
From a technical perspective, the root cause lies in insufficient input validation and output encoding during the web page generation process. The application fails to properly sanitize user-supplied input before storing it or fails to encode that data appropriately when rendering it back into HTML content for display. This oversight allows special characters such as angle brackets, quotes, and ampersands to pass through without being converted into their corresponding HTML entities. Consequently, the browser interprets these unescaped sequences not as plain text but as executable code directives. The persistence of this payload means that every user who views the affected page is exposed to the attack vector, significantly amplifying the blast radius compared to non-persistent vulnerabilities.
The operational impact of this vulnerability is substantial and multifaceted. Attackers can exploit stored XSS to steal session cookies, thereby hijacking active administrative or customer sessions without needing credentials. This capability allows for complete account takeover, enabling unauthorized access to sensitive e-commerce data including customer personal information, payment details, and order histories. Furthermore, the attacker can manipulate the user interface by injecting deceptive elements such as fake login forms designed to phish additional credentials from unsuspecting visitors. In more advanced scenarios, the vulnerability can be leveraged to perform actions on behalf of authenticated users, modify site content without authorization, or redirect traffic to malicious external sites for further exploitation campaigns like malware distribution.
This specific flaw aligns with CWE-79, which categorizes improper neutralization of input during web page generation as a critical weakness in software security design and implementation. It also maps directly to the MITRE ATT&CK framework under technique T1059, specifically sub-technique 007 for JavaScript execution within browser environments. The persistence aspect places it firmly within the context of stored injection attacks where the malicious payload remains active on the server side until manually removed or overwritten by legitimate data updates.
To mitigate this vulnerability and secure the SureCart environment, immediate action is required to update the plugin to a version later than 4.9.4 where these input handling mechanisms have been corrected. Developers must implement strict output encoding using context-aware methods such as HTML entity encoding for all dynamic content rendered in web pages. Input validation should be enforced on both client and server sides to reject or sanitize unexpected character sequences before they are processed further. Additionally, deploying a Web Application Firewall can provide an additional layer of defense by filtering out malicious payloads at the network perimeter. Regular security audits and code reviews focusing on data flow from input sources to output sinks are essential to prevent similar injection flaws in future development cycles.