Unauthorized Data Loss in Blog2Social Plugin for WordPress
CVE-2026-4331

4.3MEDIUM

Key Information:

Vendor

WordPress
Status
Blog2social: Social Media Auto Post & Scheduler
Vendor
CVE Published:
26 March 2026

What is CVE-2026-4331?

The Blog2Social plugin for WordPress is susceptible to a vulnerability that permits unauthorized data loss. All versions up to and including 8.8.2 allow users with Subscriber-level permissions to access the plugin's features. Due to inadequate verification in the resetSocialMetaTags() function, authenticated attackers can delete all custom social media meta tags stored in the wp_postmeta table. This situation arises because the plugin grants 'blog2social_access' capability to all user roles, posing a significant risk to the integrity of social media metadata associated with posts.

Affected Version(s)

Blog2Social: Social Media Auto Post & Scheduler 0 <= 8.8.2

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/blog2social/tr...
https://plugins.trac.wordpress.org/browser/blog2social/ta...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mariusz Maik
.