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6 vulnerabilities by Perfmatters

CVE-2026-4351 (GCVE-0-2026-4351)

Vulnerability from cvelistv5 – Published: 2026-04-10 01:24 – Updated: 2026-04-10 15:54
VLAI?
Title
Perfmatters <= 2.5.9 - Authenticated (Subscriber+) Arbitrary File Overwrite via 'snippets' Parameter
Summary
The Perfmatters plugin for WordPress is vulnerable to arbitrary file overwrite via path traversal in all versions up to, and including, 2.5.9. This is due to the `PMCS::action_handler()` method processing the bulk action `activate`/`deactivate` handlers without any authorization check or nonce verification. The `$_GET['snippets'][]` values are passed unsanitized to `Snippet::activate()`/`Snippet::deactivate()` which call `Snippet::update()` then `file_put_contents()` with the traversed path. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite arbitrary files on the server with a fixed PHP docblock content, potentially causing denial of service by corrupting critical files like `.htaccess` or `index.php`.
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
Impacted products
Vendor Product Version
perfmatters Perfmatters Affected: 0 , ≤ 2.5.9 (semver)
Create a notification for this product.
Credits
Phú
Show details on NVD website

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CVE-2026-4350 (GCVE-0-2026-4350)

Vulnerability from cvelistv5 – Published: 2026-04-03 07:41 – Updated: 2026-04-08 16:54
VLAI?
Title
Perfmatters <= 2.5.9.1 - Authenticated (Subscriber+) Arbitrary File Deletion via 'delete' Parameter
Summary
The Perfmatters plugin for WordPress is vulnerable to arbitrary file deletion via path traversal in all versions up to, and including, 2.5.9.1. This is due to the `PMCS::action_handler()` method processing the `$_GET['delete']` parameter without any sanitization, authorization check, or nonce verification. The unsanitized filename is concatenated with the storage directory path and passed to `unlink()`. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary files on the server by using `../` path traversal sequences, including `wp-config.php` which would force WordPress into the installation wizard and allow full site takeover.
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
Impacted products
Vendor Product Version
perfmatters Perfmatters Affected: 0 , ≤ 2.5.9.1 (semver)
Create a notification for this product.
Credits
Phú
Show details on NVD website

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CVE-2023-47874 (GCVE-0-2023-47874)

Vulnerability from cvelistv5 – Published: 2024-02-29 05:31 – Updated: 2024-08-09 20:44
VLAI?
Title
WordPress Perfmatters Plugin <= 2.1.6 is vulnerable to Broken Access Control
Summary
Missing Authorization vulnerability in Perfmatters.This issue affects Perfmatters: from n/a through 2.1.6.
CWE
Assigner
Impacted products
Vendor Product Version
Perfmatters Perfmatters Affected: n/a , ≤ 2.1.6 (custom)
Create a notification for this product.
Credits
Dave Jong (Patchstack)
Show details on NVD website

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CVE-2023-47876 (GCVE-0-2023-47876)

Vulnerability from cvelistv5 – Published: 2023-11-30 16:43 – Updated: 2024-11-20 20:48
VLAI?
Title
WordPress Perfmatters Plugin <= 2.1.6 is vulnerable to Cross Site Scripting (XSS)
Summary
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Perfmatters allows Reflected XSS.This issue affects Perfmatters: from n/a through 2.1.6.
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
Impacted products
Vendor Product Version
Perfmatters Perfmatters Affected: n/a , ≤ 2.1.6 (custom)
Create a notification for this product.
Credits
Dave Jong (Patchstack)
Show details on NVD website

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CVE-2023-47877 (GCVE-0-2023-47877)

Vulnerability from cvelistv5 – Published: 2023-11-30 16:40 – Updated: 2024-08-02 21:16
VLAI?
Title
WordPress Perfmatters Plugin < 2.2.0 is vulnerable to Cross Site Scripting (XSS)
Summary
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Perfmatters allows Stored XSS.This issue affects Perfmatters: from n/a before 2.2.0.
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
Impacted products
Vendor Product Version
Perfmatters Perfmatters Affected: n/a , < 2.2.0 (custom)
Create a notification for this product.
Credits
Dave Jong (Patchstack)
Show details on NVD website

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CVE-2023-47875 (GCVE-0-2023-47875)

Vulnerability from cvelistv5 – Published: 2023-11-30 16:12 – Updated: 2024-08-02 21:16
VLAI?
Title
WordPress Perfmatters Plugin <= 2.1.6 is vulnerable to Cross Site Request Forgery (CSRF)
Summary
Cross-Site Request Forgery (CSRF) vulnerability in Perfmatters allows Cross Site Request Forgery.This issue affects Perfmatters: from n/a through 2.1.6.
CWE
  • CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
Impacted products
Vendor Product Version
Perfmatters Perfmatters Affected: n/a , ≤ 2.1.6 (custom)
Create a notification for this product.
Credits
Dave Jong (Patchstack)
Show details on NVD website

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