CVE-2024-0776 in pb-cms
Summary
by MITRE • 01/22/2024
A vulnerability, which was classified as problematic, has been found in LinZhaoguan pb-cms 2.0. Affected by this issue is some unknown functionality of the component Comment Handler. The manipulation with the input
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Analysis
by VulDB Data Team • 02/16/2024
CVE-2024-0776 represents a security vulnerability within LinZhaoguan pb-cms 2.0 that specifically targets the Comment Handler component. This vulnerability falls under the category of input validation flaws, where improper handling of user-supplied data creates potential attack vectors that could be exploited by malicious actors. The issue is classified as problematic due to its potential to allow unauthorized access or data manipulation within the content management system. The vulnerability stems from inadequate sanitization and validation of comment inputs, which could enable attackers to inject malicious code or manipulate the comment handling functionality in unintended ways.
The technical implementation of this vulnerability involves the Comment Handler component failing to properly validate or sanitize incoming data from user comments. This weakness creates opportunities for injection attacks where malicious payloads could be executed within the CMS environment. The flaw likely exists in how the system processes comment submissions, potentially allowing attackers to bypass normal input validation mechanisms. According to CWE classification, this vulnerability aligns with CWE-20, which covers "Improper Input Validation," and may also relate to CWE-79, "Cross-Site Scripting," depending on the specific exploitation method. The vulnerability's impact is particularly concerning given that comments are often user-facing components that receive direct input from external parties.
From an operational perspective, this vulnerability presents significant risks to the integrity and security of the pb-cms 2.0 system. Attackers could potentially leverage this weakness to execute arbitrary code, steal sensitive information, or manipulate content within the comment system. The implications extend beyond simple data corruption, as compromised comment handlers could serve as entry points for broader system infiltration. This vulnerability aligns with ATT&CK techniques such as T1059.007 for command and script injection, and T1566 for social engineering through malicious comments. Organizations using this CMS version face potential exposure to persistent threats that could compromise their content management infrastructure and user data.
Mitigation strategies for CVE-2024-0776 should prioritize immediate patching of the affected pb-cms 2.0 version to address the Comment Handler input validation issues. Security teams should implement comprehensive input sanitization measures that filter and validate all comment submissions before processing. Additional defensive measures include deploying web application firewalls to monitor and block suspicious comment patterns, implementing strict content security policies, and conducting regular security audits of the comment handling functionality. Organizations should also consider rate limiting for comment submissions to prevent automated exploitation attempts and establish monitoring protocols for unusual comment activity patterns that might indicate attempted exploitation of this vulnerability.