Blog2Social: Social Media Auto Post & Scheduler <= 9.1.0 - Missing Authorization to Authenticated (Contributor+) Arbitrary Modification via Multiple AJAX Handlers

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-92829
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-25 07:16:55 UTC
Updated2026-09-25 14:17:22 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.003220000 probability, percentile 0.227130000 (date 2026-09-27)

Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Pr-gateway Blog2Social Social Media Auto Post Scheduler affected 9.1.0 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/blog2social/tags/9.1.0/includes/Ajax/Post.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/blog2social/tags/9.1.0/includes/B2S/Calendar/Filter.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/blog2social/tags/9.1.0/includes/Ajax/Post.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/blog2social/tags/9.1.0/includes/Ajax/Post.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/blog2social/tags/9.1.0/includes/B2S/Post/Tools.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/blog2social/tags/9.1.0/includes/Ajax/Get.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/blog2social/tags/9.1.1/includes/Ajax/Post.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/c712972d-c6b2-46be-8c93-27a7e... [email protected] www.wordfence.com
plugins.trac.wordpress.org/browser/blog2social/tags/9.1.0/includes/Ajax/Post.php [email protected] plugins.trac.wordpress.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Averon Averenkov (Averon Averenkov) (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-09-16T21:07:30.000ZVendor Notified
CNA2026-09-24T18:10:48.000ZDisclosed

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