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Vulnerabilities

Vulnerability · CVE-2026-85097

Critical Unauthenticated Arbitrary File Upload Vulnerability Exploited in Bricksforge Plugin

Published Oct 7, 2026 · catalog updated Oct 7, 2026 · Critical Unauthenticated Arbitrary File

Patch now

CVE-2026-85097 is in the CISA known-exploited catalog. Confirm Critical Unauthenticated Arbitrary File against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Critical Unauthenticated Arbitrary File).
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
0.31%
Remediation
Remediation guidance
Affected products
stated bricksforge · vendor bricksforge bricksforge

The Bricksforge plugin for WordPress is vulnerable to unauthenticated arbitrary file upload in versions up to, and including, 3.1.8.9. This is due to insufficient validation of the attacker-controlled URL field in the 'temporaryFileUploads' parameter during form submission. An unauthenticated attacker can first obtain a valid nonce via the bricksforge_regenerate_nonce AJAX endpoint, then upload a GIF/PHP polyglot file to the temporary upload directory where MIME type validation is correctly performed. Subsequently, the attacker can submit a form with a crafted 'temporaryFileUploads' parameter Initial-access exploit intelligence.

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.

  • stated bricksforge<= 3.1.8
  • vendor bricksforge bricksforgeversion unspecified

How to fix CVE-2026-85097

What to do

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

Should you patch?

CVE-2026-85097 is in the CISA known-exploited catalog. Confirm Critical Unauthenticated Arbitrary File against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with <= 3.1.8. 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 0.31%. 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. Oct 7, 2026 · CISA KEV

    Known exploited

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

  2. Oct 8, 2026 · Patchstack Database

    Detected

    This blog post covers a Critical unauthenticated arbitrary file upload vulnerability in the Bricksforge plugin for WordPress. Patchstack has deployed a mitigation rule to protect against exploitation of this vulnerability. If you are a Bricksforge user, update to at least version 3.1.8.10. This vulnerability is currently being targeted in the wild. Tracked as CVE-2026-85097, the […]

Sources

  • CVE.orgVulnerability recordCVE-2026-85097

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-85097

    30-day exploitation probability 0.3%

    first.org
  • Patchstack DatabaseVendor advisoryCVE-2026-85097

    This blog post covers a Critical unauthenticated arbitrary file upload vulnerability in the Bricksforge plugin for WordPress. Patchstack has deployed a mitigation rule to protect against exploitation of this vulnerability. If you are a Bricksforge user, update to at least version

    patchstack.com
  • VulnCheck KEVConfirmed exploitationCVE-2026-85097

    The Bricksforge plugin for WordPress is vulnerable to unauthenticated arbitrary file upload in versions up to, and including, 3.1.8.9. This is due to insufficient validation of the attacker-controlled URL field in the 'temporaryFileUploads' parameter during form submission. An un

    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.