Security Flaw in Performance Monitor Plugin for WordPress
CVE-2026-3881

Currently unrated

Key Information:

Vendor

WordPress
Status
Performance Monitor
Vendor
CVE Published:
31 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3881?

The Performance Monitor plugin for WordPress, up to version 1.0.6, is prone to a security vulnerability where it does not properly validate certain parameters. This oversight could allow unauthorized users to execute Server-Side Request Forgery (SSRF) attacks, compromising the integrity of the server and potentially exposing sensitive information.

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Deploy the Patch

Affected Version(s)

Performance Monitor 0 <= 1.0.6

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-3881 - Proof of Concept

References

https://wpscan.com/vulnerability/4b30421e-9848-45ce-87ab-...
exploitvdb-entrytechnical-description

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Afshin Shekaari
WPScan
JSON
.