CVE-2026-6703: CWE-862 Missing Authorization in cyberchimps Responsive Blocks – Page Builder for Blocks & Patterns
The Responsive Blocks – Page Builder for Blocks & Patterns plugin for WordPress is vulnerable to unauthorized access in all versions up to, and including, 2.2.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to modify global site-wide plugin configuration options, including toggling custom CSS, disabling blocks, changing layout defaults such as content width, container padding, and container gap, and altering auto-block-recovery behavior.
AI Analysis
Technical Summary
CVE-2026-6703 is a CWE-862 missing authorization vulnerability in the Responsive Blocks – Page Builder for Blocks & Patterns WordPress plugin. The plugin fails to verify that users are authorized to perform certain actions, allowing authenticated users with contributor-level privileges or higher to alter global plugin configuration options. Affected versions include all up to and including 2.2.1. The vulnerability allows modification of settings such as custom CSS toggling, block disabling, layout defaults (content width, container padding, container gap), and auto-block-recovery behavior. The CVSS v3.1 base score is 4.3, indicating medium severity. No vendor advisory or patch is currently available, and no known exploits have been reported.
Potential Impact
An attacker with contributor-level or higher access can modify global plugin settings, potentially affecting the appearance and behavior of the website by changing CSS, disabling blocks, and altering layout defaults. This does not allow direct code execution or data confidentiality impact but can lead to site misconfiguration and degraded user experience.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level access to trusted users only and monitor for unauthorized configuration changes. Avoid granting unnecessary privileges to users.
CVE-2026-6703: CWE-862 Missing Authorization in cyberchimps Responsive Blocks – Page Builder for Blocks & Patterns
Description
The Responsive Blocks – Page Builder for Blocks & Patterns plugin for WordPress is vulnerable to unauthorized access in all versions up to, and including, 2.2.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to modify global site-wide plugin configuration options, including toggling custom CSS, disabling blocks, changing layout defaults such as content width, container padding, and container gap, and altering auto-block-recovery behavior.
CVSS v3.1
Score 4.3medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-6703 is a CWE-862 missing authorization vulnerability in the Responsive Blocks – Page Builder for Blocks & Patterns WordPress plugin. The plugin fails to verify that users are authorized to perform certain actions, allowing authenticated users with contributor-level privileges or higher to alter global plugin configuration options. Affected versions include all up to and including 2.2.1. The vulnerability allows modification of settings such as custom CSS toggling, block disabling, layout defaults (content width, container padding, container gap), and auto-block-recovery behavior. The CVSS v3.1 base score is 4.3, indicating medium severity. No vendor advisory or patch is currently available, and no known exploits have been reported.
Potential Impact
An attacker with contributor-level or higher access can modify global plugin settings, potentially affecting the appearance and behavior of the website by changing CSS, disabling blocks, and altering layout defaults. This does not allow direct code execution or data confidentiality impact but can lead to site misconfiguration and degraded user experience.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level access to trusted users only and monitor for unauthorized configuration changes. Avoid granting unnecessary privileges to users.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-04-20T17:50:34.807Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e7244019fe3cd2cdad1058
Added to database: 4/21/2026, 7:16:16 AM
Last enriched: 4/21/2026, 7:31:23 AM
Last updated: 6/4/2026, 8:45:47 PM
Views: 82
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