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CVE-2026-4330— Blog2Social: Social Media Auto Post & Scheduler <= 8.8.3 - Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary Post Schedule Modification via 'b2s_id' Parameter

Quick assessment

Affected
pr-gateway Blog2Social: Social Media Auto Post & Scheduler
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Blog2Social: Social Media Auto Post & Scheduler 8.8.3及之前版本存在安全漏洞，该漏洞源于AJAX处理程序未验证用户提供的b2s_id参数归属，可能导致经过身份验证的

CVSS 4.3 · Medium EPSS 0.49% · P40

Possible ATT&CK Techniques 1 AI

T1098 · Account Manipulation
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I. Basic Information for CVE-2026-4330

Vulnerability Information
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Vulnerability Title
Blog2Social: Social Media Auto Post & Scheduler <= 8.8.3 - Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary Post Schedule Modification via 'b2s_id' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Blog2Social: Social Media Auto Post & Scheduler 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Blog2Social: Social Media Auto Post & Scheduler 8.8.3及之前版本存在安全漏洞，该漏洞源于AJAX处理程序未验证用户提供的b2s_id参数归属，可能导致经过身份验证的
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
pr-gateway Blog2Social: Social Media Auto Post & Scheduler 0 ~ 8.8.3 -

II. Public POCs for CVE-2026-4330

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III. Intelligence Information for CVE-2026-4330

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Patches & Fixes for CVE-2026-4330 (2)

IV. Related Vulnerabilities

Same product: Blog2Social: Social Media Auto Post & Scheduler
Same vendor: pr-gateway
Same weakness: CWE-639

V. Comments for CVE-2026-4330

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