Perfmatters: Filesystem traversal
Perfmatters is affected by filesystem traversal. The vulnerable path is reachable without authentication. A crafted path can escape the intended directory and reach files or directories elsewhere on the server. The published affected range is <= 2.6.4.
- Component
- Perfmatters
- Plugin slug
perfmatters- Affected
- <= 2.6.4
- Safe version
> 2.6.4- Published
- Jul 02, 2026
This CVE was published Jul 02, 2026 and is one of 9 known issues for this plugin.
Update, patch or deactivate.
Update Perfmatters to a release after 2.6.4, or disable and remove it until a fixed version is available.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Perfmatters plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 2.6.4 via the 's' parameter. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. Exploitation requires the Local Google Fonts feature to be enabled (disabled by default), pretty permalinks to be active, and RSS feed links to remain enabled in the plugin settings.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N