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CVE Record

CVE-2026-32451: WordPress Fusion Builder plugin < 3.15.0 - Broken Access Control vulnerability

Missing Authorization vulnerability in ThemeFusion Fusion Builder fusion-builder allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Fusion Builder: from n/a through < 3.15.0.

MediumCVSS 6.5Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2026-32451 is a broken access control issue in the WordPress Fusion Builder plugin before 3.15.0. A logged-in low-privilege user may access protected data they should not see. The published CVSS score is 6.5, driven by high confidentiality impact. No provided source says it is actively exploited.

Executive priority

Address in the next normal patch cycle, faster for membership, ecommerce, or multi-author sites with untrusted users. The issue is not reported as actively exploited, but the confidentiality impact makes delayed remediation risky on exposed WordPress environments.

Technical view

ThemeFusion Fusion Builder is affected by a missing authorization vulnerability, CWE-862, through versions below 3.15.0. CVSS 3.1 vector is AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N, indicating remote access, low complexity, required low privileges, no user interaction, and confidentiality impact only.

Likely exposure

Exposure is likely limited to WordPress sites running Fusion Builder versions earlier than 3.15.0, especially sites allowing subscriber, contributor, customer, or other low-privilege accounts. Sites without authenticated untrusted users have reduced practical exposure, but should still update.

Exploitation context

The vulnerability requires an authenticated low-privilege user. The source bundle does not include public exploit details, observed attacks, or CISA KEV listing. Treat this as a confidentiality risk rather than a confirmed active exploitation emergency.

Researcher notes

Public details are limited. The record identifies missing authorization in Fusion Builder before 3.15.0, but does not describe affected endpoints, roles, or data types. Avoid assuming exploitability beyond the CVSS vector and authenticated low-privilege requirement.

Mitigation direction

  • Upgrade Fusion Builder to version 3.15.0 or later if available.
  • Check ThemeFusion or Patchstack guidance for any additional vendor-specific remediation.
  • Restrict creation of low-privilege accounts until patched.
  • Remove or disable Fusion Builder where it is not required.
  • Review site roles and minimize unnecessary authenticated access.

Validation and detection

  • Inventory WordPress sites using the Fusion Builder plugin.
  • Confirm installed Fusion Builder versions are 3.15.0 or later.
  • Identify sites allowing untrusted authenticated users.
  • Review access logs for unusual authenticated requests involving builder functionality.
  • Monitor CVE, Patchstack, and vendor pages for updated details.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-862: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-32451 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6.5CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N2.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.5Medium
CVSS 3.1 vector shape for CVE-2026-32451Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
ThemeFusionFusion Builderfusion-builder, 0unaffected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-862 · source CWE mapping

Missing Authorization

Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.