CVE-2026-112028 in cms
Summary
by MITRE • 10/19/2026
A flaw has been found in light0011 cms c774dce31c6df0055568a8d5c53d964d99be199d/f72cf46f601efb2a0618c3814cc2f61380b38930. Affected by this issue is some unknown functionality of the file App/Home/Controller/VoteController.class.php of the component Vote Handler. This manipulation of the argument X-Requested-With causes business logic errors. Remote exploitation of the attack is possible. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
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Analysis
by VulDB Data Team • 10/19/2026
The vulnerability identified in LightCMS, specifically within the VoteController component located at App/Home/Controller/VoteController.class.php, represents a significant security flaw stemming from improper validation and handling of HTTP request headers. The core technical deficiency lies in how the application processes the X-Requested-With header, which is commonly used by JavaScript frameworks like jQuery to identify AJAX requests. In this instance, the software fails to adequately sanitize or validate input derived from this header before utilizing it within its business logic operations related to voting mechanisms. This lack of rigorous input validation allows an attacker to manipulate the expected behavior of the application by injecting unexpected values into the X-Requested-With field during HTTP transactions.
From a technical perspective, this flaw aligns with CWE-20 Improper Input Validation and potentially CWE-915 Improper Modification of Dynamically-Controlled Code Identifiers if the header influences code execution paths or data integrity checks. The vulnerability enables business logic errors because the application likely relies on the presence or specific value of this header to determine whether a request is legitimate, asynchronous, or authorized for certain actions. By spoofing or altering this header, an attacker can bypass intended restrictions, potentially allowing unauthorized voting, vote manipulation, or denial of service conditions by triggering unintended code paths within the Vote Handler module.
The operational impact of this vulnerability is severe due to its remote exploitability and direct effect on core application functionality. Since the flaw resides in a public-facing controller handling user interactions such as votes, attackers can leverage published exploits to compromise data integrity without requiring authentication or prior access privileges. This capability undermines the trustworthiness of any system relying on accurate vote counts or similar transactional logic, leading to potential financial loss, reputational damage, and erosion of user confidence in the platform's fairness and security posture.
This incident is further characterized by ATT&CK technique T1078 Valid Accounts if authentication bypasses are involved through header manipulation, or more accurately T1190 Exploit Public-Facing Application given the remote nature of the attack vector. The fact that exploit code has already been published significantly increases the risk landscape, as automated scanning tools and malicious actors can rapidly deploy attacks against unpatched instances. Despite being notified early via an issue report, the project maintainers have not yet issued a patch or acknowledgment, leaving deployed systems exposed to active exploitation in the wild.
Mitigation strategies must prioritize immediate defensive measures given the absence of vendor patches. Administrators should implement web application firewall rules that strictly validate and restrict acceptable values for the X-Requested-With header, ensuring only expected AJAX signatures are processed by the VoteController endpoint. Additionally, implementing strict input validation at the framework level to sanitize all HTTP headers before they interact with business logic is essential. Organizations running this version of LightCMS should consider isolating affected instances from direct internet access until a vendor-supplied fix becomes available and regularly monitor for any subsequent updates or community-developed workarounds that address the specific header manipulation flaw in the vote handling mechanism.