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Vulnerabilities

Vulnerability · CVE-2026-3881

The Performance Monitor WordPress plugin through 1.0.6 does not validate a parameter before making a request to it, which could allow unauthenticated users to perform SSRF attacks

Published Mar 31, 2026 · catalog updated Jun 17, 2026 · The Performance Monitor WordPress

Check if you run it

No confirmed exploitation is on record for CVE-2026-3881. EPSS is 0.32%. Act only if a listed version of The Performance Monitor WordPress is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (The Performance Monitor WordPress).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.32%
Remediation
Not established
Affected products
See sources for product scope

The Performance Monitor WordPress plugin through 1.0.6 does not validate a parameter before making a request to it, which could allow unauthenticated users to perform SSRF attacks

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-3881

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-3881. EPSS is 0.32%. Act only if a listed version of The Performance Monitor WordPress is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-918: Server-Side Request Forgery (SSRF). EPSS 0.32%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 31, 2026 · NIST NVD

    Detected

    The Performance Monitor WordPress plugin through 1.0.6 does not validate a parameter before making a request to it, which could allow unauthenticated users to perform SSRF attacks

  2. Jun 17, 2026 · NIST NVD

    Updated

    The Performance Monitor WordPress plugin through 1.0.6 does not validate a parameter before making a request to it, which could allow unauthenticated users to perform SSRF attacks

Sources

  • CVE.orgVulnerability recordCVE-2026-3881

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-3881

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2026-3881

    The Performance Monitor WordPress plugin through 1.0.6 does not validate a parameter before making a request to it, which could allow unauthenticated users to perform SSRF attacks

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.