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  4. CVE 2026 14494 sigma forms pro 145 unauthenticated
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Back to active CVEs
Critical · CVSS 9.8CVE-2026-14494

Sigma Forms Pro <= 1.4.5 - Unauthenticated Unauthenticated Arbitrary File Upload Leading to Remote Code Execution via Pre-built Template File Upload FieldCVE-2026-14494

Answer in brief

CVE-2026-14494 records a Critical severity (CVSS 9.8) vulnerability in Sigma Forms Pro <= 1.4.5 - Unauthenticated Unauthenticated Arbitrary File Upload Leading to Remote Code Execution via Pre-built Template File Upload Field. The current sources do not mark it as known exploited. The current feed maps bdthemes/SigmaForms Pro – AI Generated Forms (generic), bdthemes/SigmaForms Pro – AI Generated Forms (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 29, 2026Updated Aug 31, 2026Source checked Oct 13, 2026First seen by HOL Aug 29, 2026Material review Aug 31, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.8
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps bdthemes/SigmaForms Pro – AI Generated Forms (generic), bdthemes/SigmaForms Pro – AI Generated Forms (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
bdthemes/SigmaForms Pro – AI Generated Formsgeneric>=0 <=1.4.5Not reported
bdthemes/SigmaForms Pro – AI Generated Formsgeneric0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for bdthemes/SigmaForms Pro – AI Generated Forms, bdthemes/SigmaForms Pro – AI Generated Forms.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Aug 29, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Aug 31, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 29, 2026

Sources and claim methodology

  • Source referencefeedback.bdthemes.com
  • Source referencewordfence.com
Upstream source description

The Sigma Forms Pro plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.4.5 via the handle_form_submission function. This is due to the plugin dynamically granting the unfiltered_upload capability to all users during form submissions and bypassing MIME type validation when allowed_file_types is not configured. This makes it possible for unauthenticated attackers to execute code on the server. Several default pre-built templates including Job Application, Support Ticket, and Wholesale Application have file upload fields with no file type restrictions configured by design, making this vulnerability immediately exploitable upon installation.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • JumpServer: Ansible Automation Template Rendering Allows Unsafe Lookup Plugin InvocationSame generic ecosystem
  • dataclasses-avroschema allows code injection through fixed-type aliases supplied as a bare stringSame generic ecosystem
  • dataclasses-avroschema enum field defaults can inject statements into generated modulesSame generic ecosystem
  • GPAC AIT Parser ait.c gf_m2ts_decode_ait out-of-bounds writeSame generic ecosystem
  • libsndfile WAV Parsing wavlike.c wavlike_subchunk_parse uninitialized variableSame generic ecosystem
  • Ikaros 1.2.0 through 1.2.5 TOTP Authentication Bypass via Temp TokenSame generic ecosystem

Record context

Vulnerability class
Arbitrary File Read
EPSS
Not reported
CWE IDs
CWE-434
Source
CVE List V5
Source checked
Oct 13, 2026
References
2 linked sources
Open source record