CVE-2025-30902 in AEC Kiosque Plugin
Summary
by MITRE • 04/01/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ATL Software SRL AEC Kiosque allows Reflected XSS. This issue affects AEC Kiosque: from n/a through 1.9.3.
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Analysis
by VulDB Data Team • 04/01/2025
This vulnerability represents a classic cross-site scripting flaw that exploits improper input handling during web page generation within the ATL Software SRL AEC Kiosque application. The reflected XSS vulnerability occurs when user-supplied input is not properly sanitized or encoded before being included in dynamically generated web content, creating an avenue for malicious script execution in the context of a victim's browser. The vulnerability specifically affects versions of the AEC Kiosque software ranging from an unspecified initial version through 1.9.3, indicating a persistent flaw that has not been adequately addressed in the affected release cycle.
The technical implementation of this vulnerability stems from the application's failure to neutralize user input that flows directly into web page output without appropriate encoding or validation mechanisms. When a malicious user crafts a specially formatted input string and submits it to the vulnerable application, the system reflects this input back to the user's browser without proper sanitization, allowing attacker-controlled scripts to execute in the victim's browsing context. This type of vulnerability falls under CWE-79 which specifically addresses Cross-Site Scripting flaws, and it aligns with ATT&CK technique T1566.001 for Initial Access through Spearphishing Attachments or Links, as attackers can leverage this vulnerability to deliver malicious payloads to unsuspecting users.
The operational impact of this reflected XSS vulnerability extends beyond simple script execution, as it can enable attackers to steal session cookies, perform unauthorized actions on behalf of users, manipulate web page content, and potentially escalate privileges within the application. Attackers can craft malicious URLs that, when clicked by victims, will execute scripts in the victim's browser context, potentially leading to account takeover, data theft, or further exploitation within the application's security boundaries. The reflected nature of this vulnerability means that the malicious payload must be delivered through external means such as email links or malicious websites, as the attack requires the victim to be tricked into clicking a specially crafted URL.
Mitigation strategies for this vulnerability should focus on implementing proper input validation and output encoding mechanisms throughout the application's data flow. The most effective remediation involves implementing Content Security Policy headers, employing proper HTML encoding for all dynamic content, and validating all user-supplied input against a whitelist of acceptable characters and patterns. Organizations should also consider implementing a web application firewall to detect and block suspicious input patterns, while ensuring that all user input undergoes sanitization before being processed or displayed. Additionally, regular security testing including automated scanning and manual penetration testing should be conducted to identify and remediate similar vulnerabilities in the application's codebase. The fix should be prioritized for immediate implementation across all affected versions of the AEC Kiosque application, with thorough regression testing to ensure that the mitigation does not introduce new functional issues.