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CVE-2026-85097

Status: DeferredCritical (9.8)—💥 PoC

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.

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Subsequently, the attacker can submit a form with a crafted 'temporaryFileUploads' parameter where the server-side file path points to the validated GIF file, but the attacker-controlled url field ends with a .php extension. This makes it possible for unauthenticated attackers to upload and execute arbitrary PHP code on the server.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

⚠️ GitHub proofs of concept are not verified: some are fake or contain malware. Never run them outside an isolated lab.

📰 Media coverage

Specialised security media that have cited this CVE:

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

Plugin WordPress expuesto en red sin autenticación (AV:N/PR:N/UI:N); carga de web shell PHP mediante validación insuficiente de parámetro 'temporaryFileUploads' permite ejecución de código.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Privileged Account ManagementDisable or Remove Feature or ProgramVulnerability ScanningUser Account ManagementRestrict Web-Based ContentNetwork Segmentation

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Bricksforge — BricksforgeAI

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-85097",
  "cveTags": [],
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          "role": "CISA Coordinator",
          "options": [
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          "version": "2.0.3",
          "timestamp": "2026-10-08T14:24:30.449178Z"
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          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
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      "affectedData": [
        {
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          "product": "Bricksforge",
          "versions": [
            {
              "status": "affected",
              "version": "0",
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  "published": "2026-10-08T07:16:31.710",
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      "url": "https://bricksforge.io/version-changelog/",
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    }
  ],
  "lastModified": "2026-10-08T17:24:11.230",
  "sourceIdentifier": "security@wordfence.com"
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