CVE-2026-71445 in AIL Framework
Summary
by MITRE • 08/07/2026
AIL Framework contained a reflected cross-site scripting vulnerability in the /tag/add_tags endpoint. When an error occurred while processing a tag operation, the application returned the error value directly as an HTML response using str(res[0]).
If attacker-controlled input was included in the generated error message, a crafted request could cause arbitrary HTML or JavaScript to be reflected in the response without appropriate output encoding. An attacker could exploit the vulnerability by convincing an authenticated AIL Framework user to open a specially crafted link.
Successful exploitation could allow JavaScript to execute in the victim’s browser within the security context of the AIL Framework application. Depending on the victim’s privileges and the application’s protections, the attacker could perform actions using the victim’s session, access information available to the victim, or modify data through authenticated application requests.
The vulnerability requires user interaction because the authenticated victim must follow or open the crafted request. The attacker does not necessarily require an AIL Framework account, provided that the crafted request can be delivered to an already authenticated user.
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Analysis
by VulDB Data Team • 08/07/2026
The AIL Framework represents a sophisticated cybersecurity tool designed for threat intelligence analysis and management, making it a critical component in modern security operations centers. This framework handles sensitive threat data and provides essential functionalities for security analysts to process and correlate information from various sources. The vulnerability discovered within this system demonstrates a classic reflected cross-site scripting flaw that undermines the application's security boundaries and potentially compromises the entire threat intelligence workflow.
This reflected XSS vulnerability specifically manifests within the /tag/add_tags endpoint of the AIL Framework, where error handling mechanisms fail to properly sanitize user-supplied input before rendering it in HTML responses. The technical flaw stems from the application's direct use of str(res[0]) to output error messages without implementing appropriate output encoding or sanitization measures. When an error occurs during tag operations, the system returns the raw error value as part of the HTML response, creating an injection point where attacker-controlled content can be reflected back to users. This pattern aligns with CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') and follows established attack patterns documented in the MITRE ATT&CK framework under technique T1566.001 - Phishing: Spearphishing Attachment.
The operational impact of this vulnerability extends beyond simple script execution, as it creates a persistent threat vector that can be leveraged for session hijacking and privilege escalation. An authenticated user who opens a maliciously crafted link could inadvertently execute JavaScript code within the security context of the AIL Framework application, potentially allowing attackers to perform actions with the victim's privileges. This includes accessing sensitive threat intelligence data, modifying tag configurations, or executing unauthorized operations that could compromise the integrity and confidentiality of the entire threat intelligence database. The vulnerability's requirement for user interaction makes it particularly dangerous in targeted attack scenarios where social engineering can be employed to deliver malicious payloads.
Mitigation strategies should focus on implementing robust input validation and output encoding mechanisms throughout the application's error handling pathways. The most effective approach involves sanitizing all user-supplied input before processing and ensuring that any error messages are properly encoded when rendered in HTML contexts. Additionally, implementing Content Security Policy headers can provide an additional layer of protection against script execution, while regular security testing including automated scanning and manual penetration testing should be conducted to identify similar vulnerabilities across the application's codebase. The ATT&CK framework's technique T1068 - Exploitation for Privilege Escalation and T1531 - Account Access Removal highlight the potential for such vulnerabilities to enable broader compromise when proper defensive measures are not implemented.