CVE-2024-27499 in Bagisto
Summary
by MITRE • 03/01/2024
Bagisto v1.5.1 is vulnerable for Cross site scripting(XSS) via png file upload vulnerability in product review option.
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Analysis
by VulDB Data Team • 08/11/2025
The vulnerability identified as CVE-2024-27499 affects Bagisto version 1.5.1 and represents a cross site scripting vulnerability that emerges through png file upload functionality within the product review feature. This security flaw resides in the web application's handling of image uploads and subsequent processing within the product review system, creating an avenue for malicious actors to inject malicious scripts into the application's response. The vulnerability specifically targets the product review option where users can upload images, with the png file upload mechanism failing to properly sanitize or validate file metadata that could contain embedded malicious code.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding within the file upload processing pipeline. When users submit product reviews with png images, the application does not sufficiently sanitize the image file contents or metadata, allowing potentially malicious scripts to be embedded within the image file itself or its associated attributes. This weakness enables attackers to craft specially formatted png files that contain javascript code within their metadata or structure, which then gets executed when the image is rendered within the web application's interface. The vulnerability manifests as a classic reflected cross site scripting issue where the malicious payload is executed in the context of the victim's browser session, potentially allowing for session hijacking, data theft, or further exploitation.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform various malicious activities within the application's security context. An attacker could leverage this vulnerability to steal user session cookies, redirect victims to malicious websites, or even execute commands on the server if the application's architecture allows for additional attack vectors. The product review functionality typically involves user-generated content that gets displayed to other users, making this a particularly dangerous vulnerability as the malicious payload would be executed whenever other users view the affected product reviews. This creates a persistent threat vector that could affect multiple users over time, especially in applications with high user engagement and frequent product review interactions.
Organizations deploying Bagisto v1.5.1 should implement immediate mitigations to address this vulnerability, including input validation of all uploaded files, proper sanitization of image metadata, and output encoding of all user-generated content. The recommended approach involves implementing strict file type validation, using secure image processing libraries that strip metadata, and implementing content security policies to prevent script execution. Additionally, the application should sanitize all user inputs through proper encoding mechanisms and implement proper access controls to limit the scope of potential damage. This vulnerability aligns with CWE-79 which addresses cross site scripting flaws, and maps to ATT&CK technique T1566.001 for initial access through spearphishing attachments, as attackers could use malicious png files as part of broader attack campaigns. The fix should involve updating to a patched version of Bagisto or implementing proper input validation and sanitization measures within the application's file upload handling code to prevent the execution of malicious scripts through image uploads.