CVE-2025-28906 in Skitter Slideshow Plugin
Summary
by MITRE • 03/12/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Thiago S.F. Skitter Slideshow allows Stored XSS. This issue affects Skitter Slideshow: from n/a through 2.5.2.
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Analysis
by VulDB Data Team • 03/12/2025
The CVE-2025-28906 vulnerability represents a critical cross-site scripting flaw in the Thiago S.F. Skitter Slideshow plugin, classified under CWE-79 as improper neutralization of input during web page generation. This vulnerability enables attackers to inject malicious scripts into web pages viewed by other users, creating a persistent threat vector that can compromise user sessions and data integrity. The issue specifically manifests as a stored XSS vulnerability, meaning that malicious payloads are permanently stored on the server and executed whenever affected pages are accessed, rather than requiring immediate interaction with a crafted URL.
The technical implementation of this vulnerability stems from inadequate input validation and sanitization within the slideshow plugin's web page generation process. When users submit content through the plugin's interface, the system fails to properly sanitize or escape user-provided data before incorporating it into dynamically generated web pages. This allows attackers to inject malicious javascript code that persists in the plugin's database or configuration files, executing automatically whenever the affected slideshow content is rendered to users. The vulnerability affects all versions of the Skitter Slideshow plugin from the initial release through version 2.5.2, indicating a long-standing security gap that has not been adequately addressed.
The operational impact of this stored XSS vulnerability extends beyond simple script execution, as it can be leveraged for session hijacking, credential theft, and redirection to malicious sites. Attackers can exploit this flaw to steal cookies, session tokens, and potentially access sensitive user data. The persistent nature of stored XSS means that once the malicious payload is injected, it continues to affect users until the vulnerability is patched and the malicious content is removed from the system. This creates a significant risk for websites using the plugin, particularly those with user-generated content or administrative interfaces that rely on the slideshow functionality.
Mitigation strategies for CVE-2025-28906 must prioritize immediate remediation through plugin updates to versions that address the XSS vulnerability. Organizations should implement comprehensive input validation and output encoding mechanisms to prevent malicious data from being stored or executed within the plugin's framework. Additionally, security measures including web application firewalls, content security policies, and regular security audits should be deployed to detect and prevent exploitation attempts. The vulnerability aligns with ATT&CK technique T1566.001 for initial access through malicious inputs and T1059.007 for command and control through script injection, making it a critical target for both preventive and detective security controls. System administrators should also consider implementing network monitoring to detect unusual traffic patterns that might indicate exploitation attempts and establish incident response procedures specifically tailored to address XSS vulnerabilities in content management systems.