CVE-2020-10468 in PHPKB Standard Multi-Language
Summary
by MITRE
Reflected XSS in admin/edit-news.php in Chadha PHPKB Standard Multi-Language 9 allows attackers to inject arbitrary web script or HTML via the GET parameter p.
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Analysis
by VulDB Data Team • 05/11/2025
The vulnerability identified as CVE-2020-10468 represents a critical reflected cross-site scripting flaw within the Chadha PHPKB Standard Multi-Language version 9 content management system. This security weakness specifically affects the admin/edit-news.php component where the application fails to properly sanitize user input received through the GET parameter p. The vulnerability arises from the application's inadequate validation and encoding of input data before incorporating it into dynamically generated web responses, creating an avenue for malicious actors to execute arbitrary scripts within the context of authenticated administrator sessions.
The technical implementation of this vulnerability stems from the application's failure to implement proper input sanitization mechanisms for the p parameter in the edit-news.php administrative interface. When an attacker crafts a malicious URL containing crafted script code within the p parameter and delivers it to an administrator, the application reflects this code back in the HTTP response without appropriate encoding or validation. This allows the malicious script to execute in the administrator's browser context, potentially enabling full administrative control over the vulnerable system. The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws, and represents a classic reflected XSS attack vector where the malicious payload is embedded in a URL and delivered to the victim through social engineering or direct exploitation.
The operational impact of this vulnerability is severe as it provides attackers with a direct pathway to compromise administrative privileges within the PHPKB system. An attacker who successfully exploits this vulnerability could execute arbitrary code in the administrator's browser, potentially leading to complete system compromise through session hijacking, data exfiltration, or modification of critical system parameters. The reflected nature of this XSS means that the attack requires minimal setup and can be delivered through simple URL manipulation, making it particularly dangerous in environments where administrators frequently click on links from untrusted sources. This vulnerability directly maps to attack techniques described in the MITRE ATT&CK framework under T1059.005 for command and scripting interpreter and T1566 for phishing, as it enables attackers to establish persistent access through malicious web content delivery.
Mitigation strategies for CVE-2020-10468 should prioritize immediate patching of the affected PHPKB Standard Multi-Language version 9 system to address the input validation deficiency. Organizations should implement comprehensive input validation and output encoding mechanisms to prevent the reflection of untrusted data into web responses. The implementation of Content Security Policy headers can provide additional protection against XSS attacks by restricting script execution contexts. Regular security assessments and input validation testing should be conducted to identify similar vulnerabilities in other components of the application. Additionally, administrative users should be trained to recognize potentially malicious URLs and avoid clicking on untrusted links, while network monitoring should be enhanced to detect suspicious traffic patterns associated with XSS exploitation attempts. The vulnerability underscores the critical importance of proper input sanitization practices and demonstrates how seemingly minor validation gaps can lead to significant security breaches in web applications.