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Vulnerabilities

Vulnerability · CVE-2026-18781

Improper Control of Generation of Code ('Code Injection')

Published Aug 24, 2026 · catalog updated Aug 24, 2026 · Glen Don Mongaya Drag and Drop Multiple File Upload for Contact Form 7

Patch now

CVE-2026-18781 is in the CISA known-exploited catalog. Confirm Glen Don Mongaya Drag and Drop Multiple File Upload for Contact Form 7 against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
0.54%
Remediation
Remediation guidance
Affected products
vendor Glen Don Mongaya Drag and Drop Multiple File Upload for Contact Form 7

The Drag and Drop Multiple File Upload for Contact Form 7 WordPress plugin before 1.3.9.9 does not validate the final name of an uploaded file after stripping characters from it, allowing unauthenticated users to defeat its file type restrictions and execute arbitrary code on the server.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Glen Don Mongaya Drag and Drop Multiple File Upload for Contact Form 7version unspecified

How to fix CVE-2026-18781

What to do

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

Should you patch?

CVE-2026-18781 is in the CISA known-exploited catalog. Confirm Glen Don Mongaya Drag and Drop Multiple File Upload for Contact Form 7 against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 0.54%. The CISA KEV listing is the exploitation evidence. 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. Aug 24, 2026 · VulnCheck KEV

    Detected

    The Drag and Drop Multiple File Upload for Contact Form 7 WordPress plugin before 1.3.9.9 does not validate the final name of an uploaded file after stripping characters from it, allowing unauthenticated users to defeat its file type restrictions and execute arbitrary code on the server.

  2. Aug 24, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2026-18781

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-18781

    30-day exploitation probability 0.5%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2026-18781

    The Drag and Drop Multiple File Upload for Contact Form 7 WordPress plugin before 1.3.9.9 does not validate the final name of an uploaded file after stripping characters from it, allowing unauthenticated users to defeat its file type restrictions and execute arbitrary code on the

    vulncheck.com

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.