CVE-2026-92807 Code injection in Save as PDF Plugin by PDFCrowd
Authenticated contributors can inject arbitrary PHP functions via a shortcode attribute, leading to code execution and API key disclosure.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-92807?
CVE-2026-92807 is a high-severity code injection vulnerability in Save as PDF Plugin by PDFCrowd, published on 19 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Save as PDF Plugin by PDFCrowd plugin for WordPress is vulnerable to Arbitrary Function Invocation in all versions up to, and including, 4.6.1 via the `pdf_created_callback` shortcode attribute. The `eval_shortcode()` function copies any non-`button_`/non-`email_` shortcode attribute verbatim into a custom options array without sanitization, allowlist enforcement, or capability checks, and `create_button()` AES-encrypts that array — including the attacker-supplied callback value — and embeds the resulting blob in the rendered button HTML; when the blob is later POSTed to the unauthenticated `wp_ajax_nopriv_save_as_pdf_pdfcrowd` endpoint, `save_as_pdf_pdfcrowd()` decrypts it and invokes `$options['pdf_created_callback']` as a PHP callable at line 1722 with no `is_callable()` guard, no allowlist, and no capability check. This makes it possible for authenticated attackers, with Contributor-level access and above, to invoke arbitrary PHP functions or static class methods with plugin option data as the sole argument, enabling disclosure of the site's stored PDFCrowd API key and username or further server-side abuse. Note that the encryption boundary does not mitigate this vector because the server itself encrypts the attacker-chosen callback during shortcode rendering, supplying any authenticated Contributor with a cryptographically valid blob that any unauthenticated visitor can subsequently replay to trigger invocation.
Weakness: CWE-94
Which versions are affected by CVE-2026-92807?
How do I fix CVE-2026-92807?
No fix has been published for CVE-2026-92807 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-92807 being exploited?
There is no known exploitation of CVE-2026-92807 in the wild and no public exploit code.
Sources
Also known as GHSA-3fg9-62hh-37mh.