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TI-2026-60338 Aliases CVE-2026-89029GHSA-6r37-32vj-mjwv

Blog2Social WordPress Plugin < 9.1.0 User Enumeration via AJAX Handler

Priority LOW 24CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

Adenion Blog2Social plugin for WordPress before 9.1.0 allows low-privileged users to enumerate WordPress user accounts. The b2s_get_select_mandant_user AJAX handler in includes/Ajax/Get.php resolves arbitrary user IDs supplied in the owner parameter to display names without verifying that the caller is authorized to read user account data, allowing any user with the edit_posts capability to map WordPress user IDs to display names and confirm account existence for arbitrary IDs.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00281 20th percentileScored 2026-11-07
Fix Fixed Blog2Social (Adenion): 9.1.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
pr-gatewayBlog2Socialbefore 9.1.09.1.0Patch availableCNA
  • Blog2Social Vendorpr-gateway Affected before 9.1.0 Fixed in 9.1.0 Patch available CNA

Remediation

  • Fix · CNA Blog2Social (Adenion) Fixed in 9.1.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Adenion Blog2Social 9.1.0

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2026-60340 Blog2Social WordPress Plugin < 9.1.0 Broken Access Control via b2s_calendar_move_postPriority LOW 24
    • TI-2026-60339 Blog2Social WordPress Plugin < 9.1.0 User Email Disclosure via b2s_search_userPriority LOW 24
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-89029
  2. 2026-10-03 Alias added: GHSA-6r37-32vj-mjwv

References

Patch 1

  • TI-2022-02999 Blog2Social < 6.9.10 - Subscriber+ SQLi CVSS 3.1HIGH 8.8
  • TI-2022-03000 Blog2Social < 6.9.10 - Subscriber+ SSRF CVSS 3.1MEDIUM 6.5
  • TI-2023-03658 Blog2Social < 7.2.1 - Reflected XSS CVSS 3.1MEDIUM 6.1
  • TI-2025-03671 Blog2Social: Social Media Auto Post & Scheduler < 8.4.0 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
  • TI-2019-10204 The Adenion Blog2Social plugin through 5.5.0 for WordPress allows SQL Injection. CVSS 3.1CRITICAL 9.8
  • TI-2024-03309 Blog2Social: Social Media Auto Post & Scheduler <= 7.4.1 - Authenticated (Subscriber+) SQL Injection CVSS 3.1CRITICAL 9.9
See all 28 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences