Blog2Social: Social Media Auto Post & Scheduler <= 8.8.3 — Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary Post Schedule Modification via 'b2s_id' Parameter
CVE-2026-4330Published · Updated Action summary
Affected: ≤8.8.3Update to 8.8.4 or newer
All remediation steps- Severity
- Medium4.3
- CVSS
- 4.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- None
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Blog2Social: Social Media Auto Post & Scheduler blog2social
- Affected≤ 8.8.3
- Patched in8.8.4
Update to 8.8.4 or newer.
You are affected if you run ≤ 8.8.3. Version 8.8.4 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Blog2Social: Social Media Auto Post & Scheduler.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 8.8.4, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Blog2Social: Social Media Auto Post & Scheduler to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to s00me00ne.
The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to authorization bypass through user-controlled key in all versions up to, and including, 8.8.3. This is due to the plugin's AJAX handlers failing to validate that the user-supplied 'b2s_id' parameter belongs to the current user before performing UPDATE and DELETE operations. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify, reschedule, or delete other users' scheduled social media posts.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Blog2Social: Social Media Auto Post & Scheduler
All 30| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.3 | Authenticated (Contributor+) Insecure Direct Object Reference to Sensitive Information Exposure ≤9.1.4Update to 9.1.5 | CVE-2026-108092 | |
| Medium4.3 | Missing Authorization to Authenticated (Contributor+) Arbitrary Modification via Multiple AJAX Handlers ≤9.1.0Update to 9.1.1 | CVE-2026-92829 | |
| Medium4.3 | Missing Authorization ≤9.0.0Update to 9.1.0 | CVE-2026-89030 | |
| Medium4.3 | Insecure Direct Object Reference ≤9.0.0Update to 9.1.0 | CVE-2026-89031 | |
| Medium4.3 | Authenticated (Subscriber+) Username Enumeration ≤9.0.0Update to 9.1.0 | CVE-2026-89029 |
- Medium4.3Authenticated (Contributor+) Insecure Direct Object Reference to Sensitive Information Exposure
≤9.1.4Update to 9.1.5
- Medium4.3Missing Authorization to Authenticated (Contributor+) Arbitrary Modification via Multiple AJAX Handlers
≤9.1.0Update to 9.1.1
- Medium4.3Missing Authorization
≤9.0.0Update to 9.1.0
- Medium4.3Insecure Direct Object Reference
≤9.0.0Update to 9.1.0
- Medium4.3Authenticated (Subscriber+) Username Enumeration
≤9.0.0Update to 9.1.0
Timeline
CVE published
Severity medium, CVSS 4.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.