SP Blog Designer <= 1.0.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'design' Attribute
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 SP Blog Designer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'design' attribute of the `wpsbd_post_carousel` shortcode in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output escaping. 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| softpulseinfotech | SP Blog Designer | up to 1.0.0 | — | No fix listed | CNA |
- SP Blog Designer Vendorsoftpulseinfotech Affected up to 1.0.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-4859
- 2026-10-03 Alias added: GHSA-p424-c7qx-c8pc
References
Other 3
- https://www.wordfence.com/threat-intel/vulnerabilities/id/705b1da0-df92-40c2-a608-ccad32a9c224?source=cve
- https://plugins.trac.wordpress.org/browser/sp-blog-designer/tags/1.0.0/includes/shortcode/wpsbd-post-carousel.php#L156
- https://plugins.trac.wordpress.org/browser/sp-blog-designer/trunk/includes/shortcode/wpsbd-post-carousel.php#L156
More softpulseinfotech vulnerabilities
- TI-2024-35051 WordPress Picsmize plugin <= 1.0.0 - Arbitrary File Upload vulnerability CVSS 3.1CRITICAL 10.0
- TI-2024-35169 WordPress SP Blog Designer plugin <= 1.0.0 - Local File Inclusion vulnerability CVSS 3.1HIGH 7.5
- TI-2025-22769 WordPress SP Blog Designer plugin <= 1.0.0 - Arbitrary Shortcode Execution vulnerability CVSS 3.1MEDIUM 4.8
Sources
- CVE-2026-4859 · CVE Program
- CVE-2026-4859 · NVD
- FIRST EPSS
- GHSA-p424-c7qx-c8pc · 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