CVE-2025-1543 in Dreamer CMS
Summary
by MITRE • 02/21/2025
A vulnerability, which was classified as problematic, has been found in iteachyou Dreamer CMS 4.1.3. This issue affects some unknown processing of the file /resource/js/ueditor-1.4.3.3. The manipulation leads to path traversal. The attack may be initiated remotely. The exploit has been disclosed to the 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 • 07/09/2026
This vulnerability in iteachyou Dreamer CMS 4.1.3 represents a critical path traversal flaw that resides within the file processing mechanism located at /resource/js/ueditor-1.4.3.3. The issue stems from inadequate input validation and sanitization within the content management system's javascript library handling component, creating an exploitable condition where remote attackers can manipulate file paths to access unauthorized resources on the server. The vulnerability classification as problematic indicates a significant security risk that has been publicly disclosed, suggesting that malicious actors have already developed working exploits for this flaw.
The technical execution of this path traversal attack occurs through manipulation of file processing parameters within the ueditor javascript library implementation. When the CMS processes requests involving resource files located in the specified path, it fails to properly validate or sanitize user-supplied input that influences file access operations. This allows attackers to construct malicious paths that can traverse directory structures beyond the intended scope, potentially enabling access to sensitive system files, configuration data, or other restricted resources within the web application's filesystem. The vulnerability operates at the application layer and specifically targets the content management system's resource handling capabilities.
The operational impact of this vulnerability is severe as it permits remote code execution capabilities through path traversal attacks, potentially allowing attackers to read arbitrary files from the server filesystem, including configuration files, database credentials, or other sensitive data. Attackers could leverage this flaw to escalate privileges, access administrative interfaces, or even deploy malicious payloads within the CMS environment. The lack of vendor response following disclosure indicates a potential security gap in the software supply chain and suggests that organizations using this CMS version may be exposed to active exploitation attempts without available patches or mitigation strategies.
Organizations should immediately implement network-level mitigations such as web application firewalls that can detect and block path traversal patterns, restrict access to sensitive file paths through server configuration changes, and conduct comprehensive vulnerability assessments of all systems running the affected CMS version. The remediation approach should include applying vendor patches if available, implementing proper input validation mechanisms, and conducting security code reviews focused on file handling operations. This vulnerability aligns with CWE-22 path traversal weakness and represents a technique commonly categorized under ATT&CK tactic TA0005 Defense Evasion and TA0004 Privilege Escalation, emphasizing the need for robust access controls and proper resource management within web applications.