Vulnerability · Published Jun 18, 2026 · Assigned by Wordfence
CVE-2026-9860Offload, AI & Optimize with Cloudflare Images <= 1.10.2 - Authenticated (Author+) Remote Code Execution via 'api-key' / 'account-id' Parameters in cf_images_do_setup AJAX Action
High 8.8
In plain English
A high-severity unrestricted file upload in Offload, AI & Optimize with Cloudflare Images from vanyukov. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities).
Official description
The Offload, AI & Optimize with Cloudflare Images plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 1.10.2 via the 'account-id' parameter parameter. This is due to insufficient privilege enforcement on the cf_images_do_setup AJAX handler, which requires only the upload_files capability (Author+) rather than manage_options before writing to wp-config.php, combined with the absence of single-quote escaping — sanitize_text_field() does not strip single quotes, and filter_input(INPUT_POST) bypasses wp_magic_quotes() slashing — allowing a single quote in the account-id or api-key parameter to break out of the single-quoted PHP string literal in the write_config() define() statement. This makes it possible for authenticated attackers, with author-level access and above, to execute code on the server. This is possible because the 'cf-images-nonce' nonce required by the AJAX handler is exposed to all Author-level and above users on wp-admin/upload.php via the CFImages JavaScript object, meaning any upload-capable user can satisfy the nonce check and reach the vulnerable wp-config.php write path.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| vanyukov | Offload, AI & Optimize with Cloudflare Images | 0 – through 1.10.2 |
Weakness: CWE-434 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a772041e-015e-48e8-9fab-79f1fcdb265c?source=cve
- https://plugins.trac.wordpress.org/browser/cf-images/tags/1.10.1/app/class-settings.php#L123
- https://plugins.trac.wordpress.org/browser/cf-images/tags/1.10.1/app/class-settings.php#L75
- https://plugins.trac.wordpress.org/browser/cf-images/tags/1.10.1/app/traits/trait-ajax.php#L36
- https://plugins.trac.wordpress.org/browser/cf-images/tags/1.10.1/app/class-media.php#L94
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3564001%40cf-images&new=3564001%40cf-images&sfp_email=&sfph_mail=