Strategic Overview
- Status
- Patched in 7.5.1
- Affected Plugin
- Font – official webfonts plugin of Fonts For Web. NO CODING! Just click & change font size, color and font face visually!
- Affected Version
<= 7.5- CVSS
- 4.9Medium
- Weakness type
- CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CVE
CVE-2015-7683
At a glance
CVE-2015-7683 is a medium-severity Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the Font WordPress plugin, affecting versions <= 7.5. It carries a CVSS score of 4.9 (reachable over the network; low attack complexity; high confidentiality impact). The issue is fixed in version 7.5.1; sites on affected versions should update now. Disclosed October 2015.
Vulnerability Overview
Absolute path traversal vulnerability in Font.php in the Font plugin before 7.5.1 for WordPress allows remote administrators to read arbitrary files via a full pathname in the url parameter to AjaxProxy.php.
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 interaction from a victim user. A successful exploit has high impact on confidentiality.
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Reaching this weakness in Font <= 7.5 takes a caller who can reach the endpoint. Path traversal happens when user-controlled text is used to build a filesystem path without being constrained to an intended directory, so sequences like ../ walk the resolved path somewhere else.
Depending on the operation, it means reading files outside the intended folder — wp-config.php being the usual target — or writing to and deleting paths the web server can touch. For Font the fix is 7.5.1: builds <= 7.5 are affected, anything from 7.5.1 onward is not.
Remediation
Update to version 7.5.1, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Font: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Font 7.5.1 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C