Blog2Social Plugin up to 9.1.0 on WordPress b2s_security_nonce authorization

Summaryinfo

A vulnerability was found in Blog2Social Plugin up to 9.1.0. It has been declared as critical. This issue affects some unknown processing. The manipulation of the argument b2s_security_nonce results in authorization. This vulnerability is reported as CVE-2026-92829. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical has been found in Blog2Social Plugin up to 9.1.0. Affected is some unknown processing. The manipulation of the argument b2s_security_nonce with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at wordfence.com. This vulnerability is traded as CVE-2026-92829 since 09/16/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/25/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• WordPress Plugin

Name

• Blog2Social Plugin

Version

• 9.0
• 9.1.0

CPE 2.3info

• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒

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Threat Intelligenceinfo

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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