CVE-2026-33080 in filament
Summary
by MITRE • 03/20/2026
Filament is a collection of full-stack components for accelerated Laravel development. Versions 4.0.0 through 4.8.4 and 5.0.0 through 5.3.4 have two Filament Table summarizers (Range, Values) that render raw database values without escaping HTML. If there is a lack of validation for the data in the columns that use these summarizers, an attacker could plant malicious HTML / JavaScript and achieve stored XSS that executes for users who view the table with those summarizers. This issue has been patched in versions 4.8.5 and 5.3.5.
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Analysis
by VulDB Data Team • 03/26/2026
The vulnerability identified as CVE-2026-33080 affects Filament, a comprehensive Laravel development framework that provides full-stack components for accelerated application development. This security flaw specifically targets the table summarizer functionality within Filament's data visualization components, creating a critical cross-site scripting risk that could compromise user sessions and system integrity. The vulnerability exists in versions ranging from 4.0.0 through 4.8.4 and 5.0.0 through 5.3.4, representing a substantial portion of the framework's user base and highlighting the widespread nature of this particular security gap.
The technical implementation of this vulnerability stems from improper input sanitization within Filament's Range and Values table summarizers. These components are designed to aggregate and display database values in tabular formats, but they fail to properly escape HTML characters when rendering raw database content. This oversight creates a direct path for malicious actors to inject crafted HTML and JavaScript payloads into database fields that are subsequently displayed through these summarizers. The flaw operates at the presentation layer where user-generated content is rendered without adequate security filtering, making it particularly dangerous as it requires no privileged access to exploit.
The operational impact of this vulnerability extends beyond simple data corruption, as it enables attackers to achieve persistent stored cross-site scripting attacks that can affect all users viewing affected tables. When users access tables utilizing the vulnerable Range or Values summarizers, their browsers execute the malicious code embedded within database values, potentially leading to session hijacking, credential theft, or redirection to malicious sites. This stored XSS vulnerability is particularly concerning because the malicious payloads persist in the database and execute automatically whenever affected tables are accessed, creating a continuous threat vector that can be exploited by multiple users over extended periods.
The security implications align with CWE-79, which categorizes cross-site scripting vulnerabilities as a fundamental web application security weakness, and can be mapped to ATT&CK technique T1566.001 for initial access through malicious web content. Organizations utilizing Filament versions within the affected ranges face significant risk of unauthorized access and data compromise, particularly in environments where user-generated content is permitted in database fields that feed into table summarizers. The patching process requires immediate attention to versions 4.8.5 and 5.3.5, which implement proper HTML escaping mechanisms and input validation to prevent the injection of malicious content. System administrators should prioritize updating affected installations and conducting thorough security assessments of applications using these components to identify any potential exploitation attempts that may have occurred prior to patching.