CVE-2025-8838
BaseFortify
Publication date: 2025-08-11
Last updated on: 2026-04-29
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| winterchens | my-site | 2025-06-11 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-287 | When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2025-8838 is an improper authentication vulnerability in the WinterChenS my-site backend, specifically in the preHandle function of the /admin/ backend interface. The vulnerability arises because the code normalizes request URIs by truncating at semicolons, allowing an attacker to craft URLs like /admin/login;/../<sensitive-path> that bypass authentication checks. This lets unauthorized users access protected admin APIs without credentials, potentially performing unauthorized administrative actions such as publishing articles. [1, 2, 3]
How can this vulnerability impact me? :
This vulnerability can allow an attacker to bypass authentication remotely without any credentials and perform unauthorized administrative actions on the affected system. This includes accessing protected backend APIs and potentially modifying, publishing, or deleting content or configurations. It impacts the confidentiality, integrity, and availability of the system by allowing unauthorized access and control over administrative functions. [1, 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 for HTTP requests that exploit the improper authentication bypass via crafted URIs containing semicolons in the /admin/ path. Specifically, look for requests with URIs like /admin/login;/../<sensitive-path> which bypass authentication. You can use network monitoring tools or web server logs to search for such patterns. For example, using grep on web server logs: grep -E '/admin/login;/.+' access.log. Additionally, you can use curl to test the vulnerability by sending crafted requests such as: curl -i -X GET 'http://<target>/admin/login;/../article/publish' and observe if the response bypasses authentication (i.e., does not redirect to login). [2, 3]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include restricting or blocking requests containing semicolons in the URI path to prevent exploitation of the normalization flaw. Since no patches or fixes are currently available, consider implementing web application firewall (WAF) rules to detect and block suspicious URIs like /admin/login;/../. Additionally, consider replacing the affected product with an alternative or disabling the vulnerable /admin/ backend interface if possible until a fix is available. Monitoring and alerting on suspicious access attempts is also recommended. [1, 2]