CVE-2026-19995 in Bagisto
Summary
by MITRE • 08/17/2026
A vulnerability was determined in Webkul Bagisto up to 2.4.4. This affects an unknown part of the file /customer/account/rma/send-message of the component RMA Message Handler. This manipulation of the argument Message causes cross site scripting. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The vendor confirms: "The reported issues were already identified through our internal security assessment process prior to this notification and are being handled through our established internal security and development lifecycle. Some of these items have already been addressed, while the remaining items are planned for resolution in upcoming product releases."
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Analysis
by VulDB Data Team • 08/17/2026
A critical cross-site scripting vulnerability has been identified within Webkul Bagisto versions up to 2.4.4, specifically targeting the RMA Message Handler component located at the /customer/account/rma/send-message endpoint. This flaw arises from an insufficient validation and sanitization of user-supplied input passed via the Message argument. When a remote attacker submits malicious script content through this parameter, the application fails to properly neutralize special characters that could be interpreted as executable code by the victim's web browser. Consequently, the injected scripts are rendered directly into the response stream without adequate encoding or filtering mechanisms in place. This lack of input validation allows for the execution of arbitrary JavaScript within the context of the vulnerable website, which is a classic manifestation of stored cross-site scripting where malicious payloads can persist if they are saved to server-side storage before being served to other users.
The operational impact of this vulnerability is significant due to its potential for remote exploitation and public availability of exploit code. Since the attack vector involves manipulating an argument within a customer-facing account management feature, it likely requires some level of authentication or access to the RMA system, although the severity remains high because authenticated sessions are often targeted by attackers seeking persistent access. Successful exploitation enables malicious actors to hijack user sessions, steal sensitive information such as session cookies and personal data, perform actions on behalf of legitimate users, and potentially redirect victims to phishing sites. The public disclosure of exploits means that automated scanning tools and opportunistic attackers can readily leverage this weakness against unpatched instances, increasing the risk of widespread compromise across e-commerce platforms running affected versions.
From a classification perspective, this vulnerability aligns with CWE-79 Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting XSS. The specific nature of storing and later executing user input places it firmly within the domain of stored XSS attacks rather than reflected ones. In terms of adversary tactics, this technique corresponds to ATT&CK T1059 Command and Control which involves using scripts for lateral movement or data exfiltration, as well as T1189 Drive-by Compromise if used in conjunction with other vectors like phishing emails containing links to compromised pages that exploit this flaw. The ability to execute arbitrary code in the context of a trusted domain allows attackers to bypass same-origin policy restrictions and interact directly with the application's DOM elements, facilitating further malicious activities such as keylogging or form jacking.
Mitigation strategies must focus on both immediate remediation and long-term security posture improvements. The primary defense is implementing strict output encoding for all dynamic content rendered in HTML contexts, ensuring that special characters are converted to their corresponding HTML entities before being displayed to the end-user. Additionally, input validation should be enforced at multiple layers including client-side JavaScript checks for usability feedback and server-side rigorous type checking against a whitelist of acceptable values. Deploying Content Security Policy headers can also mitigate the impact by restricting the sources from which scripts can be loaded or executed, thereby preventing inline script execution even if injection occurs. Webkul has confirmed that these issues were identified through internal security assessments prior to public notification and are being addressed within their standard development lifecycle. Users should immediately upgrade to patched versions once released and apply any available interim workarounds such as disabling the affected endpoint temporarily if patching is not feasible in the short term while monitoring logs for signs of exploitation attempts involving script tags or event handlers in message fields.