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B Blocks CVE-2026-32489

| EUVDEUVD-2026-15831 MEDIUM
Missing Authorization (CWE-862)
2026-03-25 Patchstack GHSA-j2xj-f4v6-7rwg
6.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
6.5 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

Lifecycle Timeline

4
Patch available
Apr 16, 2026 - 05:29 EUVD
2.0.30
EUVD ID Assigned
Mar 25, 2026 - 16:47 euvd
EUVD-2026-15831
Analysis Generated
Mar 25, 2026 - 16:47 vuln.today
CVE Published
Mar 25, 2026 - 16:14 nvd
MEDIUM 6.5

DescriptionCVE.org

Missing Authorization vulnerability in bPlugins B Blocks b-blocks allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects B Blocks: from n/a through < 2.0.30.

AnalysisAI

Improper access control in bPlugins B Blocks versions prior to 2.0.30 allows unauthenticated remote attackers to modify data and degrade system availability through misconfigured security levels. The vulnerability requires no user interaction and can be exploited over the network, affecting the integrity and availability of affected installations.

Technical ContextAI

The vulnerability stems from CWE-862 (Missing Authorization), a weakness in access control implementation within the B Blocks plugin for WordPress (cpe:2.3:a:bplugins:b_blocks:*:*:*:*:*:*:*:*). B Blocks is a WordPress plugin that provides reusable block components and content building functionality. The root cause involves improperly configured or missing authorization checks that fail to enforce privilege separation and role-based access control. Rather than a cryptographic or protocol-level flaw, this is an application logic defect where the plugin fails to validate user permissions before granting access to sensitive operations or data. The vulnerability affects all versions from an unspecified baseline through version 2.0.29, suggesting the issue was present across a broad version range until remediated in 2.0.30.

RemediationAI

Immediately upgrade B Blocks to version 2.0.30 or later through the WordPress plugin update mechanism or by manually downloading the patched version from the official bPlugins repository. Before patching, verify that your WordPress installation is fully backed up. If immediate patching is not feasible, implement network-level access restrictions to limit exposure of the affected WordPress installation to trusted IP addresses or behind a Web Application Firewall (WAF) configured to restrict access to plugin functionality. Additionally, audit user roles and capabilities within WordPress to ensure least-privilege principles are enforced, and consider temporarily disabling the B Blocks plugin if it is not actively in use. Monitor WordPress audit logs and plugin activity for any signs of unauthorized access exploitation while awaiting patch deployment.

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CVE-2026-32489 vulnerability details – vuln.today

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