TI-2024-03323 Aliases CVE-2024-3564 GHSA-86r4-42m6-45m9

Content Blocks (Custom Post Widget) <= 3.3.0 - Authenticated (Contributor+) Local File Inclusion via Shortcode

MEDIUM 41CWE-98Published 2024-06-01 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution, Information disclosure
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-98 and CWE-552.

Summary

The Content Blocks (Custom Post Widget) plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 3.3.0 via the plugin's 'content_block' shortcode. This makes it possible for authenticated attackers, with contributor-level access and above, to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00618 49th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

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-2024-3564
2026-10-03 Alias added: GHSA-86r4-42m6-45m9

References

Patch 1

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3078739%40custom-post-widget&new=3078739%40custom-post-widget&sfp_email=&sfph_mail=

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/c5a0b8fe-d284-4780-84b5-2e97fa96c99a?source=cve

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
TI-2024-03324 Cross-site scripting in vanderwijk Content Blocks CVSS 3.1MEDIUM 6.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences