CVE-2019-12345 in Hostel Plugin
Summary
by MITRE
XSS exists in the Kiboko Hostel plugin before 1.1.4 for WordPress.
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Analysis
by VulDB Data Team • 09/24/2023
The vulnerability identified as CVE-2019-12345 represents a cross-site scripting flaw within the Kiboko Hostel plugin for WordPress systems. This security weakness affects versions prior to 1.1.4 and exposes WordPress installations to potential exploitation by malicious actors seeking to inject malicious scripts into web pages viewed by other users. The vulnerability resides in how the plugin processes and renders user input, creating an avenue for attackers to execute unauthorized code within the browser context of legitimate users.
The technical implementation of this XSS vulnerability stems from insufficient input validation and output sanitization within the plugin's codebase. When users interact with the hostel booking functionality or other plugin features, the system fails to properly escape or encode user-supplied data before rendering it in web pages. This allows attackers to submit malicious payloads through form fields, URL parameters, or other input vectors that the plugin does not adequately sanitize. The vulnerability specifically manifests in contexts where user-generated content is displayed without proper HTML encoding or context-appropriate escaping mechanisms.
From an operational perspective, this vulnerability poses significant risks to WordPress installations running the affected plugin version. Attackers can exploit this weakness to steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious websites, or even escalate privileges within the WordPress environment. The impact extends beyond simple data theft as attackers can manipulate the plugin's functionality to alter booking records, display malicious advertisements, or create persistent backdoors within the system. Given that hostel booking systems often handle sensitive user information including personal details and payment data, the potential for data compromise is substantial.
The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws in web applications. This weakness represents a classic example of improper input validation where the system fails to properly sanitize user data before incorporating it into dynamic web content. The ATT&CK framework categorizes this type of vulnerability under T1212 Exploitation for Credential Access, as the XSS attack can be leveraged to obtain session tokens and other authentication credentials. Additionally, the technique falls under T1566 Initial Access through the use of web application vulnerabilities to establish a foothold within the target environment.
Mitigation strategies for this vulnerability require immediate action including upgrading the Kiboko Hostel plugin to version 1.1.4 or later where the XSS flaws have been addressed. System administrators should also implement proper input validation at multiple layers including client-side and server-side sanitization of all user inputs. Web application firewalls can provide additional protection by detecting and blocking suspicious script injection attempts. Regular security audits and vulnerability assessments should be conducted to identify similar issues in other installed plugins and themes. The WordPress community should also consider implementing Content Security Policy headers to limit script execution and reduce the impact of potential XSS attacks even if other defenses fail.