CVE-2020-10488 in PHPKB Standard Multi-Language
Summary
by MITRE
CSRF in admin/manage-news.php in Chadha PHPKB Standard Multi-Language 9 allows attackers to delete a news article via a crafted request.
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Analysis
by VulDB Data Team • 05/12/2025
The vulnerability identified as CVE-2020-10488 represents a critical cross-site request forgery flaw within the Chadha PHPKB Standard Multi-Language version 9 content management system. This weakness resides in the admin/manage-news.php component which handles news article management operations. The vulnerability stems from insufficient authentication and authorization mechanisms that fail to validate the origin and intent of requests made to the news deletion functionality. Attackers can exploit this weakness by crafting malicious requests that appear to originate from authenticated administrative sessions, thereby bypassing the normal security controls designed to protect sensitive administrative operations.
The technical implementation of this CSRF vulnerability demonstrates a classic lack of proper request validation mechanisms within the web application's administrative interface. When administrators perform actions such as deleting news articles, the application should verify that the request originates from a legitimate administrative session and contains appropriate security tokens or authentication mechanisms. However, the Chadha PHPKB system fails to implement these protective measures, allowing attackers to construct malicious web pages or email attachments that, when visited by an authenticated administrator, automatically submit deletion requests to the vulnerable endpoint. This flaw directly violates the principle of least privilege and demonstrates inadequate input validation practices that are commonly addressed by security standards such as CWE-352.
The operational impact of this vulnerability extends beyond simple data loss, as it provides attackers with the capability to disrupt content management operations and potentially compromise the integrity of published information. An attacker who successfully exploits this vulnerability could remove critical news articles, potentially including security advisories, important announcements, or other administrative communications that are essential for maintaining proper system operations. The attack surface is particularly concerning because it targets administrative functions that are typically protected by strong authentication mechanisms, yet the CSRF flaw allows attackers to leverage existing administrative sessions without requiring additional credentials or authentication bypass techniques.
Organizations utilizing Chadha PHPKB Standard Multi-Language 9 should implement immediate mitigations including the deployment of anti-CSRF tokens that are generated for each administrative session and validated on every administrative request. The application should enforce strict referer header validation and implement proper session management controls that ensure requests originate from legitimate administrative interfaces. Security measures should also include the implementation of Content Security Policy headers that prevent unauthorized script execution and the enforcement of SameSite cookie attributes to prevent cross-site request forgery attacks. Additionally, network-level protections such as web application firewalls should be configured to monitor for suspicious administrative requests and implement rate limiting to prevent automated exploitation attempts. This vulnerability aligns with ATT&CK technique T1078 which addresses valid accounts and T1566 which covers credential harvesting through social engineering, making it particularly dangerous in environments where administrative privileges are frequently used.
The exploitation of this vulnerability requires minimal technical skill and can be automated through readily available tools, making it particularly attractive to threat actors seeking to disrupt services or cause information integrity issues. The attack chain typically involves creating a malicious webpage or email attachment that automatically submits deletion requests to the target system when viewed by an authenticated administrator, effectively leveraging the administrator's existing session to perform unauthorized actions. This makes the vulnerability particularly dangerous in environments where administrators frequently browse untrusted websites or open email attachments, as the exploitation can occur without any direct interaction from the administrator. Organizations should also consider implementing comprehensive logging and monitoring of administrative activities to detect unauthorized deletion attempts and establish incident response procedures that address potential content manipulation through CSRF attacks.
Mitigation strategies should encompass both immediate patching efforts and long-term architectural improvements to prevent similar vulnerabilities from emerging in future implementations. The vendor should provide security patches that implement proper CSRF protection mechanisms including unique tokens for each administrative operation and strict validation of request origins. Organizations should also conduct comprehensive security assessments of their web applications to identify similar CSRF vulnerabilities in other administrative interfaces and implement consistent security controls across all administrative functions. The vulnerability demonstrates the critical importance of maintaining proper security controls in administrative interfaces and highlights the need for regular security testing and code reviews to identify authentication and authorization flaws that could be exploited by attackers.