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  4. CVE 2026 103354 wordpress gutenberg blocks by kadence blocks
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Back to active CVEs
High · CVSS 7.1CVE-2026-103354

WordPress Gutenberg Blocks by Kadence Blocks plugin <= 3.7.11.1 - Cross Site Scripting (XSS) vulnerabilityCVE-2026-103354

Answer in brief

CVE-2026-103354 records a High severity (CVSS 7.1) vulnerability in WordPress Gutenberg Blocks by Kadence Blocks plugin <= 3.7.11.1 - Cross Site Scripting (XSS) vulnerability. The current sources do not mark it as known exploited. The current feed maps Liquid Web / StellarWP/kadence-blocks (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 4, 2026Updated Oct 4, 2026Source checked Oct 4, 2026First seen by HOL Oct 4, 2026Material review Oct 4, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.1
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 7.1. 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 Liquid Web / StellarWP/kadence-blocks (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Liquid Web / StellarWP/kadence-blocksgeneric>=0 <=3.7.11.1Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Liquid Web / StellarWP/kadence-blocks.
  2. 2Review the reported fix. Source-reported solution: Update the WordPress Gutenberg Blocks by Kadence Blocks plugin to the latest available version (at least 3.7.12).

Evidence timeline and material changes

  1. Published upstream

    Oct 4, 2026

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

  2. Source modified

    Oct 4, 2026

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

  3. First seen by HOL

    Oct 4, 2026

Sources and claim methodology

  • Source referencepatchstack.com
Upstream source description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Liquid Web / StellarWP Gutenberg Blocks by Kadence Blocks kadence-blocks allows Stored XSS.This issue affects Gutenberg Blocks by Kadence Blocks: from n/a through 3.7.11.1.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • WordPress TranslatePress plugin <= 3.3.6 - Cross Site Scripting (XSS) vulnerabilityAlso CWE-79
  • WordPress Unlimited Elements For Elementor (Free Widgets, Addons, Templates) plugin <= 2.0.20 - Cross Site Scripting (XSS) vulnerabilityAlso CWE-79
  • WordPress Unlimited Elements For Elementor (Free Widgets, Addons, Templates) plugin <= 2.0.20 - Cross Site Scripting (XSS) vulnerabilityAlso CWE-79
  • Simple Shopping Cart < 5.2.6 - Admin+ Stored XSS via PayPal API CredentialsAlso CWE-79
  • Omega Solution CoinEx Crypto Ticket Attachment Upload ticket cross site scriptingAlso CWE-79
  • OpenAM before 16.1.3 Reflected XSS via OAuth2 Authorization Error PageAlso CWE-79

Record context

Vulnerability class
XSS
EPSS
Not reported
CWE IDs
CWE-79
Source
CVE List V5
Source checked
Oct 4, 2026
References
1 linked source
Open source record