CVE-2026-8832 | WPCode <= 2.3.5 - Authenticated (Author+) Remote Code Execution via CPT Capability Bypass via XML-RPC wp.newPost

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.

Published: 2026-05-27 Last update: 2026-05-27 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-8832 is rated Moderate Risk (51/100): CVSS High severity, with low exploitation likelihood (EPSS 0.62%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-8832

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.49% 0.62% +0.13%
2 2026-06-02 0.44% 0.49% +0.05%
3 2026-05-27 — 0.44% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-8832

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]

Weakness enumeration for CVE-2026-8832

GitHub Security Advisory for CVE-2026-8832

GHSA-54cw-c4v7-gx5m · Severity: high — The WPCode - Insert Headers and Footers + Custom Code Snippets - WordPress Code Manager plugin...

Affected software / configurations for CVE-2026-8832

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-8832

URL Tags
https://plugins.trac.wordpress.org/browser/insert-headers-and-footers/tags/2.3.5/includes/class-wpcode-snippet-execute.php#L374
https://plugins.trac.wordpress.org/browser/insert-headers-and-footers/tags/2.3.5/includes/class-wpcode-snippet-execute.php#L415
https://plugins.trac.wordpress.org/browser/insert-headers-and-footers/tags/2.3.5/includes/execute/class-wpcode-snippet-execute-php.php#L25
https://plugins.trac.wordpress.org/browser/insert-headers-and-footers/tags/2.3.5/includes/post-type.php#L24
https://plugins.trac.wordpress.org/browser/insert-headers-and-footers/tags/2.3.5/includes/shortcode.php#L26
https://plugins.trac.wordpress.org/changeset/3549060/insert-headers-and-footers/trunk/includes/post-type.php
https://plugins.trac.wordpress.org/changeset?old_path=%2Finsert-headers-and-footers/tags/2.3.5&new_path=%2Finsert-headers-and-footers/tags/2.3.6
https://www.wordfence.com/threat-intel/vulnerabilities/id/75a2e8b1-d5e0-4f7b-a70a-f0aadf58c778?source=cve
cvelogic Threat Intelligence