Strategic Overview
- Status
- Patched in 2.7.7
- Affected Plugin
- Advanced AJAX Page Loader
- Affected Version
< 2.7.7- CVSS
- 7.5High
- Weakness type
- CWE-434 · Unrestricted Upload of File with Dangerous Type
- CVE
CVE-2016-10929
At a glance
CVE-2016-10929 is a high-severity Unrestricted Upload of File with Dangerous Type vulnerability in the Advanced AJAX Page Loader WordPress plugin, affecting versions < 2.7.7. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 2.7.7; sites on affected versions should update now. Disclosed July 2016.
Vulnerability Overview
The Advanced AJAX Page Loader plugin before 2.7.7 for WordPress has no protection against the reading of uploaded files when not logged in.
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, and no interaction from a victim user. A successful exploit has high impact on confidentiality.
CWE-434: Unrestricted Upload of File with Dangerous Type
Reaching this weakness in Advanced AJAX Page Loader < 2.7.7 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 Advanced AJAX Page Loader the fix is 2.7.7: builds < 2.7.7 are affected, anything from 2.7.7 onward is not.
Remediation
Update to version 2.7.7, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Advanced AJAX Page Loader: 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: Advanced AJAX Page Loader 2.7.7 closes this, and updating the plugin is the step that ends it.
- Firewall
- Scanner
- Alerts
External References
Related records
Other vulnerabilities in Advanced AJAX Page Loader
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