Perfmatters <= 2.6.3 - Reflected Cross-Site Scripting
| CVE | CVE-2026-56047 |
|---|---|
| CVSS | 6.1 (Medium) |
| Publicly Published | June 25, 2026 |
| Last Updated | June 29, 2026 |
| Researcher |
dutafi
|
Description
The Perfmatters plugin for WordPress is vulnerable to Reflected Cross-Site Scripting in versions up to, and including, 2.6.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.
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Vulnerability Details for Perfmatters
| Software Type | Plugin |
|---|---|
| Software Slug | perfmatters |
| Patched? | Yes |
| Remediation | Update to version 2.6.4, 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 Arbitrary File Read via 's' Parameter | CVE-2026-13251 | daroo | July 1, 2026 | |
| 2 | Perfmatters <= 2.6.4 - Unauthenticated Stored Cross-Site Scripting | CVE-2026-57671 | daroo | June 30, 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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