CVE-2026-8832 json
WPCode <= 2.3.5 - Authenticated (Author+) Remote Code Execution via CPT Capability Bypass via XML-RPC wp.newPost
published 2026-05-27 5 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-32100
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.9%
- EPSS 1.9% chance of exploitation in 30 days, percentile 79%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
1.86% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- smub WPCode – Insert Headers and Footers + Custom Code Snippets – WordPress Code Manager
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/75a2e8b1-d5e0-4f7b-a70a-f0aadf58c778?source=cve
- plugins.trac.wordpress.org /browser/insert-headers-and-footers/tags/2.3.5/includes/post-type.php#L24
- plugins.trac.wordpress.org /browser/insert-headers-and-footers/tags/2.3.5/includes/shortcode.php#L26
- plugins.trac.wordpress.org /browser/insert-headers-and-footers/tags/2.3.5/includes/class-wpcode-snippet-execute.php#L415
- plugins.trac.wordpress.org /browser/insert-headers-and-footers/tags/2.3.5/includes/class-wpcode-snippet-execute.php#L374
- plugins.trac.wordpress.org /browser/insert-headers-and-footers/tags/2.3.5/includes/execute/class-wpcode-snippet-execute-php.php#L25
- plugins.trac.wordpress.org /changeset/3549060/insert-headers-and-footers/trunk/includes/post-type.php
- 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
Sources
- CVE List CVE-2026-8832
- NVD CVE-2026-8832
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.