Super Forms <= 6.3.316 - Unauthenticated Privilege Escalation via 'role' Parameter (CVE-2026-15989) | HOL Guard CVE

Critical · CVSS 9.8CVE-2026-15989

Super Forms <= 6.3.316 - Unauthenticated Privilege Escalation via 'role' Parameter

Answer in brief

CVE-2026-15989 records a Critical severity (CVSS 9.8) vulnerability in Super Forms <= 6.3.316 - Unauthenticated Privilege Escalation via 'role' Parameter. The current sources do not mark it as known exploited. The current feed maps WebRehab/Super Forms – Drag & Drop Form Builder (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 Oct 1, 2026Updated Oct 1, 2026Source checked Oct 1, 2026First seen by HOL Oct 1, 2026Material review Oct 1, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 9.8
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
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 WebRehab/Super Forms – Drag & Drop Form Builder (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
WebRehab/Super Forms – Drag & Drop Form Buildergeneric	>=0 <=6.3.316	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for WebRehab/Super Forms – Drag & Drop Form Builder.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Oct 1, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 1, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 1, 2026

Sources and claim methodology

Upstream source description

The Super Forms – Drag & Drop Form Builder plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 6.3.316. This is due to the Register & Login add-on's before_email_success_msg() function whitelisting the client-submitted 'role' key and copying it into the user-data array that is passed directly to wp_insert_user(), without validating the submitted role against the administrator-configured register_user_role, without an allow-list, and without any current_user_can() capability check. This makes it possible for unauthenticated attackers to register a new account with the Administrator role by injecting role=administrator into the data submitted to any published Super Forms registration form (register_login_action='register').

Quoted source text, attributed separately from HOL analysis.