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Threat intelligence

Perfmatters <= 2.5.9.1 - Authenticated (Subscriber+) Arbitrary File Deletion via 'delete' Parameter

CVE-2026-4350 · perfmatters

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Perfmatters at a vulnerable version. How SiteRespond intelligence works

Vulnerability
Perfmatters <= 2.5.9.1 - Authenticated (Subscriber+) Arbitrary File Deletion via 'delete' Parameter
Affected software
perfmatters(Plugin)
Affected versions
  • ≤ 2.5.9.1
Authentication
Authenticated (see advisory title)
Vulnerability type
Other
Published
2 April 2026
CISA KEV
Not listed in CISA KEV at last catalog refresh
Impact
This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.
Source

Data imported from Wordfence Intelligence (advisory 58b9dab8-8539-4b53-b08d-f6ee3e1e744c). Methodology and redistribution notes

Check whether your installed version is affected

SiteRespond Defence matches your installed Perfmatters version against this catalog when the Defence plugin is connected to your WordPress site.