Blog2Social: Social Media Auto Post & Scheduler <= 9.1.0 - Missing Authorization to Authenticated (Contributor+) Arbitrary Modification via Multiple AJAX Handlers
Published Sep 25, 2026
4.3
MEDIUMCVSS 3.1
EPSS 0.32%
Description
The Blog2Social: Social Media Auto Post & Scheduler plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 9.1.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to view, modify, or delete other users' Blog2Social records, including disclosing another user's network authentication IDs and scheduled post content, overwriting Open Graph and Twitter Card post metadata on posts they do not own, rebinding another user's social-network authorization, and mass-hiding all users' scheduled posts sitewide. The plugin's b2s_security_nonce is emitted on the post-edit meta box, which Contributors can render, making the nonce available to any authenticated user at that role level or above.
Affected products
-
- Version 0StatusaffectedConstraints<=9.1.0
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| PR-Gateway | Blog2Social: Social Media Auto Post & Scheduler | unaffected |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Sep 25, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.32% (0.00322) | 22.96th | v5 (v2026.06.15) |
| Oct 1, 2026 | 0.32% (0.00322) | 22.88th | v5 (v2026.06.15) |
References (9)
- https://plugins.trac.wordpress.org/browser/blog2social/tags/9.1.0/includes/Ajax/Get.php#L695
- https://plugins.trac.wordpress.org/browser/blog2social/tags/9.1.0/includes/Ajax/Post.php#L1859
- https://plugins.trac.wordpress.org/browser/blog2social/tags/9.1.0/includes/Ajax/Post.php#L2302
- https://plugins.trac.wordpress.org/browser/blog2social/tags/9.1.0/includes/Ajax/Post.php#L2572
- https://plugins.trac.wordpress.org/browser/blog2social/tags/9.1.0/includes/Ajax/Post.php#L4475
- https://plugins.trac.wordpress.org/browser/blog2social/tags/9.1.0/includes/B2S/Calendar/Filter.php#L218
- https://plugins.trac.wordpress.org/browser/blog2social/tags/9.1.0/includes/B2S/Post/Tools.php#L166
- https://plugins.trac.wordpress.org/browser/blog2social/tags/9.1.1/includes/Ajax/Post.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c712972d-c6b2-46be-8c93-27a7e7c920a0?source=cve
Change history (0)
No recorded changes yet.