Social Post Embed <= 2.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Threads Embed
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The Social Post Embed plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Threads embed handler in all versions up to, and including, 2.0.1. This is due to insufficient input sanitization and output escaping on the user-supplied URL. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-6809
- 2026-10-03 Alias added: GHSA-v6mg-9v3f-5p52
References
Other 6
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4c16841d-8878-4328-a5dc-113d213cca33?source=cve
- https://plugins.trac.wordpress.org/browser/social-post-embed/trunk/inc/threads.php#L64
- https://plugins.trac.wordpress.org/browser/social-post-embed/tags/2.0.1/inc/threads.php#L64
- https://plugins.trac.wordpress.org/browser/social-post-embed/tags/2.0.2/inc/threads.php#L49
- https://plugins.trac.wordpress.org/browser/social-post-embed/tags/2.0.2/inc/threads.php#L50
- https://plugins.trac.wordpress.org/browser/social-post-embed/tags/2.0.2/inc/threads.php#L61
More dartiss vulnerabilities
- TI-2026-36621 Draft List - Contributor Stored Cross-Site Scripting via Draft Title in Custom Drafts Template Attributes CVSS 3.1MEDIUM 6.5
- TI-2026-35533 Code Embed - Contributor Stored Cross-Site Scripting via Remote URL Embed CVSS 3.1MEDIUM 6.5
- TI-2026-35534 ShareOpenly has Cross-Site Scripting (XSS) via Missing esc_url() on Shared URL in Content Output CVSS 4.0MEDIUM 5.3
- TI-2026-08001 Draft List <= 2.6.3 - Authenticated (Author+) Stored Cross-Site Scripting via Draft Post Title CVSS 3.1MEDIUM 6.4
- TI-2026-03469 Draft List <= 2.6.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'display_name' Parameter CVSS 3.1MEDIUM 6.4
- TI-2026-02138 Code Embed <= 2.5.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Custom Fields CVSS 3.1MEDIUM 6.4
Sources
- CVE-2026-6809 · CVE Program
- CVE-2026-6809 · NVD
- FIRST EPSS
- GHSA-v6mg-9v3f-5p52 · 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