WPCode <= 2.3.5 - Authenticated (Author+) Remote Code Execution via CPT Capability Bypass via XML-RPC wp.newPost

Wordfence Intelligence > Vulnerability Database > WPCode <= 2.3.5 - Authenticated (Author+) Remote Code Execution via CPT Capability Bypass via XML-RPC wp.newPost

8.8

Improper Control of Generation of Code ('Code Injection')

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE	CVE-2026-8832
CVSS	8.8 (High)
Publicly Published	May 26, 2026
Last Updated	May 27, 2026
Researcher	Win3

Description

The WPCode - Insert Headers and Footers + Custom Code Snippets - WordPress Code Manager plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 2.3.5 This is due to the 'wpcode' custom post type being registered without a custom capability_type or capability restrictions in the wpcode_register_post_type() function, allowing WordPress core to fall back to standard post capabilities for all creation paths including XML-RPC. This makes it possible for authenticated attackers, with author-level access and above, to create and publish executable PHP snippet posts via XML-RPC wp.newPost, which are then executed server-side via eval() in the run_eval() function when the snippet is rendered through the [wpcode] shortcode.

References

Vulnerability Details for WPCode – Insert Headers and Footers + Custom Code Snippets – WordPress Code Manager

WPCode – Insert Headers and Footers + Custom Code Snippets – WordPress Code Manager

Software Type	Plugin
Software Slug	insert-headers-and-footers (view on wordpress.org)
Patched?	Yes
Remediation	Update to version 2.3.6, or a newer patched version
Affected Version	<= 2.3.5
Patched Version	2.3.6

Recent vulnerabilities in WPCode – Insert Headers and Footers + Custom Code Snippets – WordPress Code Manager

WPCode <= 2.0.13 - Unauthenticated Reflected Cross-Site Scripting via Tag Filter Links

6.1

CVE-2023-3524

Jul 17, 2023

Researcher: Erwan LR

WPCode <= 2.0.8 - Cross-Site Request Forgery

4.7

CVE-2023-1624

Apr 3, 2023

Researcher: Erwan LR

WPCode <= 2.0.6 - Missing Authorization to Sensitive Key Disclosure/Update

5.4

CVE-2023-0328

Feb 9, 2023

Researcher: Sanjay Das

#	Title	CVE ID	CVSS	Researchers	Date
1	WPCode <= 2.0.13 - Unauthenticated Reflected Cross-Site Scripting via Tag Filter Links	CVE-2023-3524	6.1	Erwan LR	July 17, 2023
2	WPCode <= 2.0.8 - Cross-Site Request Forgery	CVE-2023-1624	4.7	Erwan LR	April 3, 2023
3	WPCode <= 2.0.6 - Missing Authorization to Sensitive Key Disclosure/Update	CVE-2023-0328	5.4	Sanjay Das	February 9, 2023

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