CVE-2022-23916 in A-Blog
Summary
by MITRE • 02/24/2022
Cross-site scripting vulnerability in a-blog cms Ver.2.8.x series versions prior to Ver.2.8.75, Ver.2.9.x series versions prior to Ver.2.9.40, Ver.2.10.x series versions prior to Ver.2.10.44, Ver.2.11.x series versions prior to Ver.2.11.42, and Ver.3.0.x series versions prior to Ver.3.0.1 allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors. This vulnerability is different from CVE-2022-24374.
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Analysis
by VulDB Data Team • 02/26/2022
The CVE-2022-23916 vulnerability represents a critical cross-site scripting flaw affecting the a-blog content management system across multiple version series including 2.8.x through 3.0.x. This vulnerability specifically impacts versions prior to the security patches released in 2.8.75, 2.9.40, 2.10.44, 2.11.42, and 3.0.1 respectively. The flaw allows remote authenticated attackers to execute arbitrary script code within the context of a victim's browser, potentially compromising user sessions and data integrity. The vulnerability's classification under CWE-79 indicates it stems from insufficient input validation and output encoding, making it a classic XSS vulnerability that can be exploited through various attack vectors within the CMS's user interface.
The technical exploitation of this vulnerability occurs when authenticated users interact with the CMS's administrative interface or user-facing components that fail to properly sanitize user-supplied input before rendering it in web pages. This flaw enables attackers to inject malicious scripts that execute in the victim's browser context, potentially leading to session hijacking, credential theft, or unauthorized administrative actions. The vulnerability's distinction from CVE-2022-24374 demonstrates that this represents a separate code path or implementation flaw within the CMS's security architecture, requiring specific patching measures for each affected version series. The authenticated nature of the attack means that an attacker must first obtain valid user credentials, but once achieved, the impact can be severe as the attacker can leverage the victim's privileges to perform malicious actions within the CMS environment.
The operational impact of CVE-2022-23916 extends beyond simple script injection, as it can enable attackers to manipulate the CMS's functionality and potentially gain unauthorized access to sensitive data. Attackers can exploit this vulnerability to modify content, create new user accounts, or even escalate privileges within the CMS. The vulnerability affects multiple version series simultaneously, indicating a fundamental flaw in the CMS's input handling mechanisms that was not properly addressed across different releases. This widespread impact suggests that organizations running any of the affected versions are at risk of compromise, particularly in environments where administrative users regularly interact with the CMS interface. The vulnerability's presence in both major version series (2.8.x through 2.11.x) and the newer 3.0.x series indicates that the flaw may be deeply embedded in the CMS's core functionality, affecting various components including user management, content editing, and configuration settings.
Organizations should immediately implement mitigations including applying the vendor-provided patches for all affected version series, implementing web application firewalls to detect and block suspicious script injection attempts, and conducting thorough security audits of CMS installations. The vulnerability's authenticated nature means that proper access control measures and privileged account monitoring are essential components of the overall security posture. Additionally, organizations should consider implementing output encoding mechanisms and content security policies to reduce the impact of potential exploitation attempts. According to ATT&CK framework, this vulnerability maps to T1566.001 (Phishing: Spearphishing Attachment) and T1059.007 (Command and Scripting Interpreter: PowerShell) as attackers may use this flaw to execute malicious scripts and establish persistent access through compromised CMS accounts. The vulnerability also aligns with CWE-352 (Cross-Site Request Forgery) and CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component) categories, indicating the need for comprehensive input validation and output encoding measures throughout the CMS's codebase. Regular security assessments and vulnerability scanning should be implemented to identify similar flaws in other CMS components and ensure that all systems remain protected against evolving attack vectors.