Vulnerability · CVE-2026-85097
Critical Unauthenticated Arbitrary File Upload Vulnerability Exploited in Bricksforge Plugin
Published Oct 7, 2026 · corrected/updated Oct 7, 2026 · bricksforge bricksforge · evidence confidence very high
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.
Grounded briefings
Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.
Executive
CVE-2026-85097 is a unknown public vulnerability record for bricksforge bricksforge. CISA lists it as known exploited. Published remediation guidance: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.
System administrator
Identify whether bricksforge bricksforge is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: bricksforge bricksforge. Published remediation guidance: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.
Security analyst
Signals on file: EPSS 0.3%. CISA lists it as known exploited. Sources contributing to this record: epss, patchstack, vulncheck_kev. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.
Exploitation and remediation
Exploitation evidence
Confirmed in CISA KEV since Oct 7, 2026. Listed in CISA KEV and VulnCheck KEV.
Patch and remediation
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Safe detection guidance
Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.
Technology hubs
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.
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.
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 […]
Affected
- vendor bricksforge bricksforgeversion unspecified
Sources
- 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