CVE-2026-0894
6.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
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, 3.3.9 due to insufficient input sanitization and output escaping on user supplied values consumed from user-created content blocks. 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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| vanderwijk | Content Blocks (Custom Post Widget) | 0 <= 3.3.9 | affected |
Weaknesses
- CWE-79: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/246dee15-82e0-4630-8d95-d2419e9eaef8?source=cve
- https://plugins.trac.wordpress.org/changeset/3447914/custom-post-widget
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