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TI-2026-82424 Aliases CVE-2026-39742GHSA-8mp3-f366-f4qp

Stored cross-site scripting in Gutenberg Blocks by Kadence Blocks

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Gutenberg Blocks by Kadence Blocks from Liquid Web / StellarWP is affected from 0 through 3.8.0.2. The plugin does not neutralize input during web page generation, which is a stored cross-site scripting flaw (CWE-79). An attacker with low privileges can store a script that runs in a victim's browser when the victim interacts with the affected page.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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 3.8.0.2.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00191 8th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Liquid Web / StellarWPGutenberg Blocks by Kadence Blocksup to 3.8.0.2—No fix listedCNA
  • Gutenberg Blocks by Kadence Blocks VendorLiquid Web / StellarWP Affected up to 3.8.0.2 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Gutenberg Blocks by Kadence Blocks.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-29 Threatist record created from CVE-2026-39742
  2. 2026-10-29 Alias added: GHSA-8mp3-f366-f4qp

References

Other 1

  • TI-2026-56689 WordPress GiveWP plugin <= 4.16.7.1 - Remote Code Execution (RCE) vulnerability CVSS 3.1CRITICAL 10.0
  • TI-2026-36681 WordPress The Events Calendar plugin 6.15.12-6.16.2 - SQL Injection vulnerability CVSS 3.1CRITICAL 9.3
  • TI-2026-69253 PHP object injection in WordPress The Events Calendar plugin CVSS 3.1CRITICAL 9.8
  • TI-2026-67823 Object injection in WordPress Advanced Post Manager plugin CVSS 3.1CRITICAL 9.8
  • TI-2026-63964 WordPress GiveWP plugin <= 4.16.9 - Broken Authentication vulnerability CVSS 3.1CRITICAL 9.1
  • TI-2026-83629 SQL injection in WordPress BookIt plugin CVSS 3.1CRITICAL 9.3
See all 37 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences