Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 4.5.3 - Authenticated (Contributor+) Stored Cross-Site Scripting
Published Mar 20, 2024
6.4
MEDIUMCVSS 3.1
EPSS 0.56%
Description
The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's widgets in all versions up to, and including, 4.5.3 due to insufficient input sanitization and output escaping on user supplied attributes such as listStyle. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected products
- Vendor Wpdevteam Product Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates Defaultunaffected
- Version -StatusaffectedConstraints<=4.5.2
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Wpdevteam | Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates | unaffected |
|
- < 4.5.3
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
1 other source (CVE.org) ▾
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Aug 5, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2024–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.56% (0.00555) | 44.30th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.56% (0.00559) | 41.93th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.14% (0.00136) | 30.11th | v4 (v2025.03.14) |
| Mar 29, 2025 | 6.78% (0.06775) | 85.11th | v4 (v2025.03.14) |
| Mar 24, 2025 | 0.14% (0.00136) | 30.18th | v4 (v2025.03.14) |
| Mar 23, 2025 | 1.55% (0.01553) | 77.68th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.14% (0.00136) | 30.90th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00045) | 17.70th | v3 (v2023.03.01) |
| May 22, 2024 | 0.04% (0.00045) | 15.01th | v3 (v2023.03.01) |
| Mar 20, 2024 | 0.04% (0.00045) | 12.90th | v3 (v2023.03.01) |
References (3)
- https://plugins.trac.wordpress.org/browser/essential-blocks/tags/4.5.2/blocks/TableOfContents.php#L120 Product
- https://plugins.trac.wordpress.org/changeset/3053199/essential-blocks/trunk/blocks/TableOfContents.php Patch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/cfcd59ae-085f-47d2-a4d2-2d1239f035d2?source=cve Third Party Advisory
Change history (0)
No recorded changes yet.