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  4. CVE 2026 127048 lazy blocks 300 unauthenticated rce
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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-127048

Lazy Blocks < 3.0.0 - Unauthenticated RCECVE-2026-127048

Answer in brief

CVE-2026-127048 records a Unknown severity vulnerability in Lazy Blocks < 3.0.0 - Unauthenticated RCE. The current sources do not mark it as known exploited. The current feed maps Unknown/Custom Block 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 Nov 15, 2026Updated Nov 15, 2026Source checked Nov 15, 2026First seen by HOL Nov 15, 2026Material review Nov 15, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. 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 Unknown/Custom Block Builder (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Unknown/Custom Block Buildergeneric>=0 <3.0.03.0.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Unknown/Custom Block Builder.
  2. 2Review the reported fix. Update Unknown/Custom Block Builder to 3.0.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 15, 2026

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

  2. Source modified

    Nov 15, 2026

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

  3. First seen by HOL

    Nov 15, 2026

Sources and claim methodology

  • Source referencewpscan.com
Upstream source description

The Custom Block Builder WordPress plugin before 3.0.0 does not properly deny unauthorised requests to its REST routes, as its permission checks return a non-error response that WordPress treats as granted, allowing unauthenticated users to execute arbitrary PHP code on the server.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Mereithhh VanBlog Image Upload Endpoint access.ts cross site scriptingAlso CWE-94
  • sergix44 XBackBone MediaController.php getRawById cross site scriptingAlso CWE-94
  • Linux Foundation Magma NMS routes.ts handleReact cross site scriptingAlso CWE-94

Record context

Vulnerability class
RCE
EPSS
Not reported
CWE IDs
CWE-94
Source
CVE List V5
Source checked
Nov 15, 2026
References
1 linked source
Open source record