5 Star <= 1.0 - Cross-Site Request Forgery to Arbitrary File Upload
Strategic Overview
- Status
- Patched in 1.1
- Affected Theme
- 5 Star Hotel
- Affected Version
<= 1.0- CVSS
- 8.8High
- Weakness type
- CWE-434 · Unrestricted Upload of File with Dangerous Type
- CVE
CVE pending
At a glance
This record tracks a high-severity Unrestricted Upload of File with Dangerous Type vulnerability in the 5 Star Hotel WordPress theme, affecting versions <= 1.0. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 1.1; sites on affected versions should update now. Disclosed March 2014, reported by Jje Incovers.
Vulnerability Overview
The 5 Star Hotel theme for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0. This is due to missing or incorrect nonce validation on a function. This makes it possible for unauthenticated attackers to perform an unauthorized action granted they can trick a site administrator into performing an action such as clicking on a link.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-434: Unrestricted Upload of File with Dangerous Type
Reaching this weakness in 5 Star Hotel <= 1.0 takes a caller who can reach the endpoint. An unrestricted file upload lets a caller store a file whose type or destination the application does not properly constrain.
If an uploaded file lands anywhere the server will execute, the flaw becomes remote code execution and the site should be treated as fully compromised. For 5 Star Hotel the fix is 1.1: builds <= 1.0 are affected, anything from 1.1 onward is not.
Remediation
Update to version 1.1, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to 5 Star Hotel: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: 5 Star Hotel 1.1 closes this, and updating the theme is the step that ends it.
- Firewall
- Scanner
- Alerts
External References
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