CVE-2025-8227
BaseFortify
Publication date: 2025-07-27
Last updated on: 2026-04-29
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| chancms | chancms | to 3.1.3 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-20 | The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. |
| CWE-502 | The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2025-8227 is a critical Remote Code Execution (RCE) vulnerability in ChanCMS versions up to 3.1.2, specifically in the /collect/getArticle endpoint. The vulnerability occurs because the endpoint accepts user-controllable parameters (such as taskUrl and parseData) without any filtering or escaping. This allows attackers to inject and execute arbitrary JavaScript code on the server by exploiting unsafe deserialization and dynamic function creation. Essentially, an attacker can remotely execute malicious commands on the server hosting ChanCMS. [1, 2, 3]
How can this vulnerability impact me? :
This vulnerability allows remote attackers to execute arbitrary code on the server running ChanCMS, potentially leading to full system compromise. Attackers can run malicious commands, access sensitive data, alter or destroy data, and disrupt service availability. Since the exploit can be launched remotely without authentication, it poses a significant security risk if the system is not patched or upgraded to version 3.1.3. [2, 3]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by monitoring or testing the /collect/getArticle endpoint for suspicious or malicious payloads in the taskUrl or parseData parameters. A practical detection method is to send crafted requests to this endpoint with payloads that attempt to execute arbitrary JavaScript code or system commands, similar to the proof-of-concept exploit. For example, using curl to send a POST request with a JSON body containing a malicious parseData parameter can help verify if the system is vulnerable. Example command: curl -X POST http://<target>/collect/getArticle -H 'Content-Type: application/json' -d '{"taskUrl":"http://example.com","parseData":"return process.mainModule.require('child_process').execSync('whoami').toString();"}' If the response contains the output of the command (e.g., the username), the system is vulnerable. Additionally, network monitoring tools can look for unusual POST requests to /collect/getArticle with suspicious payloads. [3]
What immediate steps should I take to mitigate this vulnerability?
The immediate and recommended mitigation step is to upgrade ChanCMS to version 3.1.3, which contains the patch (commit 33d9bb464353015aaaba84e27638ac9a3912795d) that fixes this vulnerability. If upgrading is not immediately possible, restrict access to the /collect/getArticle endpoint by implementing network-level controls such as firewall rules or IP whitelisting to prevent unauthorized remote access. Additionally, monitor and block suspicious requests targeting this endpoint. Applying the official patch or upgrade is the most effective way to mitigate the risk. [2]