EUVD-2026-16104

| CVE-2026-4331 MEDIUM
2026-03-26 Wordfence
4.3
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

3
Analysis Generated
Mar 26, 2026 - 04:30 vuln.today
EUVD ID Assigned
Mar 26, 2026 - 04:30 euvd
EUVD-2026-16104
CVE Published
Mar 26, 2026 - 03:37 nvd
MEDIUM 4.3

Description

The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to unauthorized data loss in all versions up to, and including, 8.8.2. This is due to the resetSocialMetaTags() function only verifying that the user has the 'read' capability and a valid b2s_security_nonce, both of which are available to Subscriber-level users, as the plugin grants 'blog2social_access' capability to all roles upon activation, allowing them to access the plugin's admin pages where the nonce is output. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete all _b2s_post_meta records from the wp_postmeta table, permanently removing all custom social media meta tags for every post on the site.

Analysis

The Blog2Social plugin for WordPress contains an authorization flaw in the resetSocialMetaTags() function that allows authenticated attackers with Subscriber-level access to permanently delete all social media metadata from the site's post records. The vulnerability exists in all versions up to and including 8.8.2 and affects sites using the Blog2Social: Social Media Auto Post & Scheduler plugin, which is available via the WordPress plugin repository. …

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Remediation

Within 30 days: Identify affected systems running for WordPress is vulnerable to unauthorized data loss in all and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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Priority Score

22
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +22
POC: 0

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EUVD-2026-16104 vulnerability details – vuln.today

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