Cross-site scripting in vanderwijk Content Blocks
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 Content Blocks (Custom Post Widget) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'content_block' shortcode in all versions up to, and including, 3.3.0 due to insufficient input sanitization and output escaping on user supplied attributes. 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 |
|---|---|---|---|---|---|
| vanderwijk | Content Blocks (Custom Post Widget) | up to 3.3.0 | — | No fix listed | CNA |
- Content Blocks (Custom Post Widget) Vendorvanderwijk Affected up to 3.3.0 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:vanderwijk:content_blocks:*:*:*:*:*:wordpress:*:* | before 3.3.1 | Vulnerable | vanderwijk |
- cpe:2.3:a:vanderwijk:content_blocks:*:*:*:*:*:wordpress:*:* Versions before 3.3.1 Vulnerable ·vanderwijk
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-3565
- 2026-10-03 Alias added: GHSA-9rvv-q72h-c5xp
References
More vanderwijk Content Blocks vulnerabilities
- TI-2024-03323 Content Blocks (Custom Post Widget) <= 3.3.0 - Authenticated (Contributor+) Local File Inclusion via Shortcode CVSS 3.1HIGH 8.8
- TI-2024-29640 WordPress Content Blocks (Custom Post Widget) plugin <= 3.3.5 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
- TI-2024-22868 WordPress Content Blocks (Custom Post Widget) plugin <= 3.3.0 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
- TI-2024-05969 Cross-site scripting in vanderwijk Content Blocks CVSS 3.1MEDIUM 6.4
Sources
- CVE-2024-3565 · CVE Program
- CVE-2024-3565 · NVD
- FIRST EPSS
- GHSA-9rvv-q72h-c5xp · 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