Laravel
CVE-2026-21451
HIGH
GHSA-2mwc-h2mg-v6p8
Severity by source
AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionGitHub Advisory
Bagisto is an open source laravel eCommerce platform. A stored Cross-Site Scripting (XSS) vulnerability exists in Bagisto prior to version 2.3.10 within the CMS page editor. Although the platform normally attempts to sanitize <script> tags, the filtering can be bypassed by manipulating the raw HTTP POST request before submission. As a result, arbitrary JavaScript can be stored in the CMS content and executed whenever the page is viewed or edited. This exposes administrators to a high-severity risk, including complete account takeover, backend hijacking, and malicious script execution. Version 2.3.10 fixes the issue.
AnalysisAI
Stored XSS in Bagisto's CMS page editor allows authenticated attackers to bypass input sanitization by crafting malicious HTTP requests, enabling persistent JavaScript injection that executes when administrators view or edit pages. Public exploit code exists for this vulnerability, creating high-risk scenarios including admin account compromise and backend system hijacking. Bagisto versions prior to 2.3.10 are affected, and no patch is currently available for the underlying Laravel platform.
Technical ContextAI
Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Bagisto. Bagisto is an open source laravel eCommerce platform. A stored Cross-Site Scripting (XSS) vulnerability exists in Bagisto prior to version 2.3.10 within the CMS page editor. Although the platform normally attempts to sanitize <script> tags, the filtering can be bypassed by manipulating the raw HTTP POST request before submission. As a result, arbitrary JavaScript can be stored in the CMS content and executed whenever the page is viewed or edited. This exposes administrators to a high-severity
RemediationAI
Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.
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Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
Leaving vuln.today