CVE-2024-47376 in Slideshow Gallery Plugin
Summary
by MITRE • 10/05/2024
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Tribulant Software Slideshow Gallery slideshow-gallery allows Cross-Site Scripting (XSS).This issue affects Slideshow Gallery: from n/a through <= 1.8.3.
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Analysis
by VulDB Data Team • 04/05/2026
The vulnerability identified as CVE-2024-47376 represents a critical cross-site scripting weakness within the Tribulant Software Slideshow Gallery plugin, specifically impacting versions through 1.8.3. This flaw resides in the improper neutralization of input during web page generation processes, creating a pathway for malicious actors to inject arbitrary script code into web pages viewed by other users. The vulnerability manifests when the plugin fails to adequately sanitize user-supplied input before incorporating it into dynamically generated web content, thereby enabling persistent XSS attacks that can compromise user sessions and execute unauthorized actions within the context of affected websites.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding mechanisms within the slideshow gallery plugin's codebase. When users interact with the plugin by submitting data through various input fields or parameters, the application does not sufficiently filter or escape special characters that could be interpreted as executable script code. This weakness allows attackers to craft malicious payloads that, when processed by the vulnerable plugin, get rendered as active content in the browser of unsuspecting users. The issue falls under CWE-79 which specifically addresses improper neutralization of input during web page generation, making it a classic example of client-side injection vulnerability.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform session hijacking, deface websites, steal sensitive user data, or redirect users to malicious sites. An attacker could exploit this vulnerability by injecting malicious JavaScript code through the plugin's input handling mechanisms, potentially gaining access to user cookies, session tokens, or other sensitive information. The persistent nature of XSS vulnerabilities means that once exploited, the malicious code can affect all users who view the affected pages until the vulnerability is patched or the malicious content is removed from the plugin's data storage.
Mitigation strategies for this vulnerability require immediate patching of the affected plugin to version 1.8.4 or later, which should contain the necessary input sanitization and output encoding fixes. System administrators should also implement additional protective measures such as content security policies that restrict script execution, input validation at multiple layers, and regular security audits of installed plugins. The vulnerability aligns with ATT&CK technique T1566.001 which covers social engineering through spearphishing with a link, as attackers could leverage this XSS flaw to deliver malicious payloads through compromised websites. Organizations should also consider implementing web application firewalls and monitoring for suspicious input patterns that could indicate attempted exploitation of this vulnerability.