Perfmatters <= 2.6.4 - Unauthenticated Arbitrary File Read via 's' Parameter
| CVE | CVE-2026-13251 |
|---|---|
| CVSS | 7.5 (High) |
| Publicly Published | July 1, 2026 |
| Last Updated | July 2, 2026 |
| Researcher |
daroo
|
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.
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Vulnerability Details for Perfmatters
| Software Type | Plugin |
|---|---|
| Software Slug | perfmatters |
| Patched? | Yes |
| Remediation | Update to version 2.6.5, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Perfmatters
| # | Title | CVE ID | CVSS | Researchers | Date |
|---|---|---|---|---|---|
| 1 | Perfmatters <= 2.6.4 - Unauthenticated Stored Cross-Site Scripting | CVE-2026-57671 | daroo | June 30, 2026 | |
| 2 | Perfmatters <= 2.6.3 - Reflected Cross-Site Scripting | CVE-2026-56047 | dutafi | June 25, 2026 | |
| 3 | Perfmatters <= 2.5.9 - Authenticated (Subscriber+) Arbitrary File Overwrite via 'snippets' Parameter | CVE-2026-4351 | h0xilo | April 9, 2026 | |
| 4 | Perfmatters <= 2.5.9.1 - Authenticated (Subscriber+) Arbitrary File Deletion via 'delete' Parameter | CVE-2026-4350 | h0xilo | April 2, 2026 | |
| 5 | Perfmatters < 2.2.0 - Authenticated (Subscriber+) Stored Cross-Site Scripting | CVE-2023-47877 | Dave Jong | November 21, 2023 | |
| 6 | Perfmatters <= 2.1.6 - Reflected Cross-Site Scripting | CVE-2023-47876 | Dave Jong | November 21, 2023 | |
| 7 | Perfmatters <= 2.1.6 - Cross-Site Request Forgery | CVE-2023-47875 | Dave Jong | November 21, 2023 | |
| 8 | Perfmatters <= 2.1.6 - Missing Authorization | CVE-2023-47874 | Dave Jong | November 20, 2023 |
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