CVE-2026-4331 Details
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.
A vulnerability exists in the Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress, affecting all versions through 8.8.2. The issue arises because the resetSocialMetaTags() function only checks if the user has the 'read' capability and a valid nonce, both of which are accessible to users with Subscriber-level roles. Upon activation, the plugin grants 'blog2social_access' capability to all roles, enabling them to access the plugin's admin pages where the nonce is displayed. This vulnerability allows authenticated attackers with Subscriber-level access or higher to delete all _b2s_post_meta records from the wp_postmeta table, permanently erasing custom social media meta tags for every post on the site.
Users are advised to update the Blog2Social: Social Media Auto Post & Scheduler plugin to version 8.8.3 or a newer patched version.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Mar 26, 2026CISA-ADP
Assessed Mar 26, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Blog2Social: Social Media Auto Post & Scheduler | <= 8.8.2 (semver) |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 26, 2026 | New CVE Received | [email protected] |