Authorization bypass in pr-gateway Blog2Social: Social Media Auto Post & Scheduler
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| pr-gateway | Blog2Social: Social Media Auto Post & Scheduler | up to 8.8.3 | — | No fix listed | CNA |
- Blog2Social: Social Media Auto Post & Scheduler Vendorpr-gateway Affected up to 8.8.3 Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:adenion:blog2social:*:*:*:*:*:*:*:* | — | — | pr-gateway |
- cpe:2.3:a:adenion:blog2social:*:*:*:*:*:*:*:* Versions — — ·pr-gateway
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-4330
- 2026-10-03 Alias added: GHSA-gx9c-69hc-cjmj
References
Other 16
- https://www.wordfence.com/threat-intel/vulnerabilities/id/f3eec9c6-fef9-4d6e-8328-51efb997c99c?source=cve
- https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php#L2183
- https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php#L2183
- https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php#L2273
- https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php#L2273
- https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php#L2322
- https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php#L2322
- https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/B2S/Post/Tools.php#L32
- https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/B2S/Post/Tools.php#L32
- https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/B2S/Ship/Save.php#L190
- https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/B2S/Ship/Save.php#L190
- https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Ajax/Post.php#L2178
- https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Ajax/Post.php#L2178
- https://plugins.trac.wordpress.org/browser/blog2social/trunk/includes/Loader.php#L2202
- https://plugins.trac.wordpress.org/browser/blog2social/tags/8.8.2/includes/Loader.php#L2202
- https://plugins.trac.wordpress.org/changeset/3494550/
More pr-gateway vulnerabilities
- TI-2022-02999 Blog2Social < 6.9.10 - Subscriber+ SQLi CVSS 3.1HIGH 8.8
- TI-2022-03000 Blog2Social < 6.9.10 - Subscriber+ SSRF CVSS 3.1MEDIUM 6.5
- TI-2023-03658 Blog2Social < 7.2.1 - Reflected XSS CVSS 3.1MEDIUM 6.1
- TI-2025-03671 Blog2Social: Social Media Auto Post & Scheduler < 8.4.0 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2019-10204 The Adenion Blog2Social plugin through 5.5.0 for WordPress allows SQL Injection. CVSS 3.1CRITICAL 9.8
- TI-2024-03309 Blog2Social: Social Media Auto Post & Scheduler <= 7.4.1 - Authenticated (Subscriber+) SQL Injection CVSS 3.1CRITICAL 9.9
Sources
- CVE-2026-4330 · CVE Program
- CVE-2026-4330 · NVD
- FIRST EPSS
- GHSA-gx9c-69hc-cjmj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences