CVE-2025-11902 in ChanCMS
Summary
by MITRE • 10/17/2025
A vulnerability was detected in yanyutao0402 ChanCMS up to 3.3.2. Affected by this vulnerability is the function findField of the file /cms/article/findField. Performing manipulation of the argument cid results in sql injection. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 10/25/2025
This vulnerability resides within the ChanCMS content management system version 3.3.2 and earlier, specifically targeting the findField function located in the /cms/article/findField file path. The flaw manifests when the cid parameter is manipulated during function execution, creating a pathway for remote sql injection attacks. The vulnerability represents a critical security risk as it allows attackers to execute arbitrary sql commands against the underlying database system. This type of vulnerability typically falls under CWE-89 which defines improper neutralization of special elements used in an sql command, making it a direct sql injection vector. The remote exploitability means that malicious actors can leverage this vulnerability without requiring physical access to the system, significantly expanding the attack surface and potential impact.
The technical implementation of this vulnerability stems from inadequate input validation and sanitization within the cid parameter handling. When the findField function processes the cid argument, it fails to properly escape or parameterize the input before incorporating it into sql queries. This omission creates a scenario where an attacker can inject malicious sql payloads through the cid parameter, potentially gaining unauthorized access to database contents, modifying or deleting critical information, or even escalating privileges within the system. The public availability of exploit code further amplifies the risk, as it removes the barrier to entry for potential attackers who may not possess advanced technical skills. This vulnerability demonstrates a classic lack of proper input sanitization practices that should be implemented according to security best practices and standards such as those outlined in the owasp top ten project.
The operational impact of this vulnerability extends beyond simple data compromise, potentially leading to complete system takeover and data exfiltration. Attackers exploiting this vulnerability could access sensitive user information, administrative credentials, or confidential business data stored within the cms database. The lack of vendor response to early disclosure attempts creates a particularly concerning scenario where organizations may continue to operate with exposed systems without official patches or mitigations. This vulnerability directly maps to several attack techniques documented in the mitre att&ck framework, particularly those related to sql injection and credential access. Organizations utilizing this cms version face significant risk of unauthorized access, data breaches, and potential regulatory compliance violations. The absence of vendor response suggests either a lack of awareness or insufficient prioritization of security patches, leaving affected systems vulnerable to exploitation.
Organizations should immediately implement mitigations including disabling or restricting access to the affected function until a proper patch is available, implementing web application firewalls to detect and block sql injection attempts, and conducting comprehensive vulnerability scans to identify systems running the affected cms version. The recommended approach involves applying the vendor's official patch as soon as it becomes available, implementing proper input validation at all user-facing interfaces, and establishing monitoring procedures to detect unusual database access patterns. Additionally, organizations should consider implementing network segmentation to limit access to database servers and ensure that database accounts used by the cms application have minimal required privileges. The vulnerability underscores the importance of maintaining current security patches and having robust vulnerability management processes in place to address security issues promptly. Security teams should also review and test their incident response procedures to ensure readiness for potential exploitation of this type of vulnerability.