CVE-2026-82890 in Guardium Data Protection
Summary
by MITRE • 09/18/2026
IBM Guardium Data Protection 12.2 could allow a remote authenticated attacker to execute arbitrary JavaScript code due to improper neutralization of input during web page generation.
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Analysis
by VulDB Data Team • 09/18/2026
The vulnerability identified in IBM Guardium Data Protection version 12.2 represents a significant security risk classified as Cross-Site Scripting, commonly referred to as XSS. This flaw stems from an insufficient validation and sanitization mechanism within the application's web interface logic. Specifically, when generating dynamic web pages, the system fails to properly neutralize user-supplied input before embedding it into HTML output. This technical deficiency allows a remote attacker who has already authenticated to the application to inject malicious scripts that are then executed in the context of other users' browsers or administrative sessions. The core issue lies in the lack of robust encoding or escaping procedures for special characters such as angle brackets, quotes, and ampersands, which are essential for distinguishing between executable code and static content within a web page structure.
From an operational perspective, this vulnerability enables attackers to perform actions that compromise the confidentiality, integrity, and availability of data protected by IBM Guardium. An authenticated attacker can craft malicious links or input fields containing JavaScript payloads. When these inputs are processed and rendered by the application without proper sanitization, the embedded scripts execute automatically in the victim's browser session. This execution occurs within the security context of the trusted site, granting the attacker elevated privileges relative to normal users. The consequences can include stealing sensitive authentication cookies or session tokens, which allows for session hijacking and unauthorized access to other user accounts. Furthermore, attackers may manipulate page content, deface interfaces, or redirect users to malicious external sites designed to phish credentials or distribute malware.
This vulnerability aligns with Common Weakness Enumeration identifier CWE-79, known as Improper Neutralization of Input During Web Page Generation, which broadly covers cross-site scripting flaws where input is not validated against a set of acceptable values before being included in web responses. In the context of the MITRE ATT&CK framework, this exploit maps to techniques under T1059, Command and Scripting Interpreter, specifically JavaScript execution within browser environments. It also relates to T1078, Valid Accounts, as it requires prior authentication, highlighting that even authenticated users pose a risk if input handling is flawed. The attack vector typically involves social engineering or direct interaction with vulnerable forms where the attacker controls the input data that gets reflected or stored in the database and subsequently rendered by the server-side application logic.
Mitigation strategies for this vulnerability primarily involve applying vendor-provided patches or updates released to address the specific code flaws responsible for the improper neutralization of input. Administrators should ensure their IBM Guardium Data Protection instances are updated to a version that includes fixes for CWE-79 vulnerabilities in web components. In addition to software updates, defense-in-depth measures such as implementing Content Security Policy headers can help mitigate the impact by restricting the sources from which scripts are allowed to execute. Input validation should be enforced on both client and server sides, ensuring that only expected data formats are accepted. Regular security audits and penetration testing focused on web application vulnerabilities can further identify similar weaknesses in input handling processes before they can be exploited by malicious actors seeking to compromise protected data environments.